| 1. |
- Bäckström, Esmeralda, et al.
(författare)
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The majority of patients report satisfaction more than 24 years after temporomandibular joint discectomy
- 2024
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Ingår i: Oral and Maxillofacial Surgery. - : Springer Nature. - 1865-1550 .- 1865-1569.
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: To retrospectively evaluate long-term outcomes after temporomandibular joint (TMJ) discectomy.Methods: Included patients (n = 64) had undergone discectomy during 1989-1998 at Umeå University Hospital. A questionnaire was used to evaluate pre- and postoperative symptoms, postoperative complications, general pain, and subjective opinion about the outcome of the surgery.Results: The results are based on responses from 47 patients (40 women/7 men), including 36 (30 women/6 men) who completed the questionnaire and 11 (10 women/1 man) who were contacted by telephone and answered selected questions. Seventeen patients were excluded because of death, a move abroad, declining to participate, or no available patient information. Among the respondents, 41 (87%) were satisfied with the results, five (11%) were unsatisfied, and one (2%) patient did not answer the question. The results showed a significant long-term improvement in locking, clicking/crepitation, and pain when chewing or opening the jaw (p = 0.001). The prevalence of headaches had decreased significantly at follow-up (p = 0.001). Reported impaired jaw-opening capacity showed no significant improvement (p = 0.08). Of the 47 respondents, 19 (40%) had asked for additional treatment after the discectomy, and six of the 19 patients (13%) had undergone more surgery of the joint.Conclusion: The results of this retrospective long-term follow-up study indicate that TMJ discectomy has a high success rate, as most patients were satisfied with the postoperative results. Discectomy is thus an effective surgical intervention for patients with disabling TMJ pain and dysfunction when conservative interventions have been unsuccessful.
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| 2. |
- Chrcanovic, Bruno, et al.
(författare)
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A morphometric analysis of the mandibular canal by cone beam computed tomography and its relevance to the sagittal split ramus osteotomy
- 2016
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Ingår i: Oral and Maxillofacial Surgery. - : Springer. - 1865-1550 .- 1865-1569. ; 20:2, s. 183-190
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: The aim of the present study was to morphometrically analyze the mandibular canal through the mandibular ramus by cone beam computed tomography (CBCT) and to relate the findings to performing sagittal split ramus osteotomy. METHODS: CBCT of 200 patients were analyzed. Five parameters were measured at the axial scan, from the mandibular foramen to 21 mm below it (3-mm intervals). The canal was classified according to the position within the bone marrow space. Variations were evaluated according to age, sex, side, and number of mandibular teeth. RESULTS/CONCLUSIONS: The following measurements increased gradually towards the most inferior level of measurement: the total thickness of the mandibular ramus through the center of the mandibular canal, the width of the bone marrow space (both buccal and lingual), and the narrowest width from the mandibular canal inner cortical to the mandibular ramus external cortical. The inner diameter of the mandibular canal slightly decreased to the same direction. Concerning the mandibular canal position within the bone marrow space, the percentage of the separate type increased towards the most inferior level of measurement, and the contact and fusion types decreased. Age, number of teeth, and sex had no significant influence on the total thickness of the mandibular ramus and on the narrowest width from the mandibular canal inner cortical to the mandibular ramus external cortical.
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| 3. |
- Chrcanovic, Bruno, et al.
(författare)
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Assessment of hematologic parameters before and after bimaxillary orthognathic surgery
- 2016
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Ingår i: Oral and Maxillofacial Surgery. - : Springer. - 1865-1550 .- 1865-1569. ; 20:1, s. 35-43
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: The purpose of the study was to evaluate changes of hematologic parameters in bimaxillary surgery. Methods: Fifty-three patients were prospectively evaluated and divided into groups based on the surgical procedure and sex (predictor variables). Hemoglobin, red blood cells, hematocrit, and platelet were the primary outcome variables, operation time the secondary outcome, and the patients’ age and weight the other variables. Trial registration: NCT02364765 (U.S. National Institutes of Health, clinicaltrials.gov). Results: There was statistically significant difference between all hematologic parameters before and after surgery, for both men and women, and for all surgical groups. There was a positive correlation between operative time and the decrease (in %) of the hematologic parameters. Linear regression analysis suggested that the Hb values decrease 0.083 % for every minute increase in the operation time, and 0.066, 0.066, and 0.010 % for RBC, Hct, and platelet count, respectively. There was a negative correlation between weight and all hematologic parameters. Correlations between age and hematologic parameters were not statistically significant. Almost all correlations between age, weight, sex, and the surgery group and the hematologic parameters were considered as very weak. Only one patient was transfused. Conclusions: It is suggested that operation time and patient’s weight play a bigger role than patient’s age and sex in the decrease of hematologic parameters after bimaxillary surgery.
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| 4. |
- Chrcanovic, Bruno, et al.
(författare)
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Dental implants in patients with epidermolysis bullosa : a systematic review
- 2019
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Ingår i: Oral and Maxillofacial Surgery. - : Springer. - 1865-1550 .- 1865-1569. ; 23:4, s. 389-394
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Forskningsöversikt (refereegranskat)abstract
- PURPOSE: To integrate the available data published on patients with epidermolysis bullosa (EB) rehabilitated with dental implants, as well as to review the recommendations for EB patients receiving implants. METHODS: An electronic search was undertaken in February 2019 in five databases. RESULTS: Sixteen publications were included, reporting 28 patients with EB, rehabilitated with 161 dental implants. The mean ± SD patients' age at implant surgery was 34.7 ± 12.1 years (range, 13-56). Only one implant was placed in the molar region, all other implants were placed in the incisor, canine, and premolar regions. Patients received a mean ± SD of 5.8 ± 2.8 implants (range, 2-11). Most of the patients received implant-supported fixed prostheses (fixed partial 14.3%, fixed full-arch 60.7%, overdenture 25%). Implant and prosthesis failure rates were 1.3% and 0%, respectively. The two implant failures were detected before or at the abutment connection. The mean ± SD follow-up time was of 39.2 ± 24.5 months (range, 6-111). The EB patient quality-of-life improved considerably as a result of treatment with dental implants. There is a series of dental care considerations that should be followed to smooth the implant treatment in EB patients. CONCLUSIONS: The dental implant failure rate in EB patients seems to be very low, although the few cases reported in the literature were followed up for a short mean period, i.e., just a little bit longer than 3 years. More cases followed up for a long period are needed in order to be able to make a more reliable prognosis for the long-term oral rehabilitation of EB patients with dental implants.
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| 5. |
- Chrcanovic, Bruno
(författare)
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Fixation of mandibular angle fractures : clinical studies
- 2014
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Ingår i: Oral and Maxillofacial Surgery. - : Springer. - 1865-1550 .- 1865-1569. ; 18:2, s. 123-152
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Tidskriftsartikel (refereegranskat)abstract
- Purpose The purpose of this study was to review the literature regarding the evolution of current thoughts on fixation of mandibular angle fractures (MAFs). Methods An electronic search in PubMed was undertaken in August 2012. The titles and abstracts from these results were read to identify studies within the selection criteria. Eligibility criteria included studies from the last 30 years (from 1983 onwards) reporting clinical studies of MAFs. Results The search strategy initially identified 767 studies. The references from 1983 onwards totaled 727 articles. Fifty-four studies were identified without repetition within the selection criteria. Two articles showing significance in the development of treatment techniques were included. Additional hand-searching yielded 13 additional papers. Thus, a total of 69 studies were included. Conclusions Prospective randomized controlled studies of MAFs repair techniques are scarce. The available data at best predict that complications are associated with all kinds of fixation techniques. The similar results of complications in studies using different methods of fixation indicate that biomechanics are only one factor to be considered when treating MAFs. A second fracture in the mandible (which was observed in the majority of the studies’ population) can confound the outcome data because the fixation requirements of a double fracture are often different from those for an isolated fracture. It can be necessary additional effort intended for increase of stability when using biodegradable plate system to fixate MAFs. The use of 1.3 mm malleable miniplates was associated with an unacceptable incidence of plate fracture, suggesting that this is not the most adequate system to treat MAFs. The use of the 3D grid plates has shown good clinical results. The efficiency of locking miniplate system is yet to be proven because there are few clinical studies with its use to fixate MAFs, although they have shown good results. When considering the use of semirigid or rigid fixation systems, the use of two miniplates outweigh the advantages of the use of one reconstruction plate, although the use of miniplates is not recommended for displaced comminuted MAFs. Although it has been shown that absolute rigid fixation is not necessary for fracture healing, any system that provides superior stability without impacting negatively on other aspects of the procedure, i.e., time, exposure, and cost, should be favored. MAFs can be treated in a highly effective way and with a relatively low rate of complications with monocortical miniplate fixation. The large number of studies on the treatment of MAF reflects the fact that a consensus has not been reached for a single, ideal treatment method.
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| 6. |
- Chrcanovic, Bruno
(författare)
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Fixation of mandibular angle fractures : in vitro biomechanical assessments and computer-based studies
- 2012
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Ingår i: Oral and Maxillofacial Surgery. - : Springer. - 1865-1550 .- 1865-1569. ; 17:4, s. 251-268
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Tidskriftsartikel (refereegranskat)abstract
- Purpose The purpose of this study was to review the literature regarding the evolution of current thoughts on fixation of mandibular angle fractures (MAFs), based on in vitro biomechanical assessments and computer-based studies. Methods An electronic search in PubMed was undertaken in August 2012. The titles and abstracts from these results were read to identify studies within the selection criteria. Eligibility criteria included studies from the last 30 years (from 1983 onwards). Results The search strategy initially identified 767 studies. Thirty-one studies were identified without repetition within the selection criteria. Two articles showing significance in the development of treatment techniques was included. Additional hand searching yielded five additional papers. Thus, a total of 38 studies were included. Conclusions The osteosynthesis positions as well as the plating technique play important roles in the stability of MAF repair. The only in vitro study evaluating the use of wire osteosynthesis concluded that wires placed through the lower border approach would provide greater stability than those at the upper border. Many studies indicate that the use of two miniplates avoids (or decreases) lateral displacement of the lower mandibular border and opening of the inferior fracture gap. Some studies even suggest that the use of two miniplates may be considered a more “rigid” fixation technique for MAFs than the use of a reconstruction plate. When using two miniplates, the biplanar plate orientation provides greater biomechanical stability than the monoplanar one. However, despite its greater biomechanical stability, the two-miniplate technique has some disadvantages that should also be taken into account. Studies with biodegradable plates suggest the use of at least two plates for each MAF. There are few studies with compression plates, and they have not yet reached a consensus. The solitary lag screw proved to withstand the functional loading of the mandible; however, only few biomechanical assessments were performed. In vitro studies have shown good biomechanical stability with the use of 3-D grid plates. The use of malleable miniplates alone is not sufficient to withstand the early postoperative bite force. Some studies suggest that the segment of the tension band miniplate located at the distal fragment of the MAF should be fixed with three screws. The studies also showed some limitations. None considered the stabilization of the fracture site afforded by the masseter–pterygoid muscle pouch. Most of the studies did not evaluate plating system strength in the long term and therefore did not observe the effect of resorption on the strength of the different biodegradable plating systems. Another limitation of many studies is the absence of a control group. A confounding factor that could not be tested in in vitro investigations is the additional resistance to displacement of jagged fracture margins present in the human fracture.
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| 7. |
- Chrcanovic, Bruno Ramos, DDS, MSc, PhD, et al.
(författare)
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Pyodermatitis-pyostomatitis vegetans : a case report and systematic review focusing on oral involvement
- 2024
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Ingår i: Oral and Maxillofacial Surgery. - : Springer Berlin/Heidelberg. - 1865-1550 .- 1865-1569.
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundPyodermatitis-pyostomatitis vegetans (PPV) is a rare mucocutaneous disease characterized by multiple pustules and it is considered a marker for inflammatory bowel disease (IBD). The oral manifestations of this condition are referred to as pyostomatitis vegetans (PSV).PurposeTo investigate which features could help in establishing the diagnosis of PSV, with or without cutaneous lesions, based on information retrieved from all cases of PSV described in the literature. A case of PV from the authors was also included in the analysis.MethodsAn electronic search was undertaken, last updated in August 2022. Inclusion criteria included publications reporting cases of PSV, with the diagnosis confirmed by the pathological examination of oral or skin lesions, and presence of IBD.Results/ConclusionsSixty-two publications with 77 cases of PSV and an associated IBD were included. Features that are helpful in establishing the diagnosis of PSV are snail track appearance of oral lesions, an associated IBD (which is not always symptomatic), evidence of intraepithelial clefting on microscopic examination of oral lesions, and peripheral blood eosinophilia. A gold standard for the management of PSV does not exist and high-level evidence is limited. There is no established therapeutic protocol for PSV and management primarily consists of topical and/or systemic corticosteroids, antirheumatic drugs (sulfasalazine, mesalazine), monoclonal antibody (infliximab, adalimumab) immunosuppressives (azathioprine, methotrexate), antibiotics (dapsone), or a combination of these. The risk of recurrence of oral lesions is considerable when the medication dose is decreased or fully interrupted.
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| 8. |
- Chrcanovic, Bruno
(författare)
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Teeth in the line of mandibular fractures
- 2012
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Ingår i: Oral and Maxillofacial Surgery. - : Springer. - 1865-1550 .- 1865-1569. ; 18:1, s. 7-24
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Tidskriftsartikel (refereegranskat)abstract
- Purpose This study aims to review the literature regarding the evolution of current thoughts on the management of teeth in the line of mandibular fractures (MFs). Methods An electronic search in PubMed was undertaken in June 2012. The titles and abstracts from these results were read to identify studies within the selection criteria—studies reporting clinical series of MFs in which the management of teeth in the fracture line was analyzed. Results The search strategy initially yielded 731 references. Twenty-seven studies were identified without repetition within the selection criteria. Additional hand searching yielded 12 additional papers. Conclusions It is suggested that rigid fixation systems and the use of antimicrobial agents have reduced the incidence of infection in cases of teeth in the line of MFs. Tooth buds in the line of MFs should not be removed or replaced in the (alleged) proper position despite the degree of displacement, since studies showed that even tooth buds in the early stage of calcification and those involved in widely displaced fracture sites continued development and erupted. Its removal should be considered in cases of infection, which is a predictive factor of abnormality and/or impaction. Intact teeth in the fracture line should be left in situ if they show no evidence of severe loosening or inflammatory change. Permanent teeth maintained in the line of fracture should be followed up clinically and radiographically for at least 1 year to ensure that any unnecessary endodontic treatment is avoided. Teeth in the line of fracture that prevents reduction of fractures, teeth with fractured roots, a partially impacted wisdom tooth with pericoronitis, and a tooth with extensive periapical lesion should be removed. Teeth in the line of MFs should also be removed when located in sites where there is extensive periodontal damage, with broken alveolar walls, resulting in the formation of a deep pocket (making optimal healing doubtful).
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| 9. |
- Eriksson, Lars, et al.
(författare)
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Analgesic efficacy and clinical acceptability of adjunct pre-emptive intravenous tramadol in midazolam sedation for third molar surgery
- 2012
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Ingår i: Oral and Maxillofacial Surgery. - : Springer. - 1865-1550 .- 1865-1569. ; 17:3, s. 193-199
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Tidskriftsartikel (refereegranskat)abstract
- Introduction This study aims to compare two routine procedures of sedation, with and without intravenous adjunct analgesia, in third molar surgery regarding postoperative pain and consumption of analgesics. Material and methods In a randomized, controlled, single-blinded procedure, 87 men and women aged 18–44 years were divided into two treatment groups, midazolam + tramadol (M + T) and midazolam + saline (M + S), and one control group (C), with no additional medication. After removal of a third lower molar, patients recorded postoperative pain on a visual analog scale (VAS) and consumption of analgesics during the first day after surgery. Results Time from the end of operation until first rescue pill (400 mg Ibuprofen tablet) differed significantly between the M + S group (193 min) and the C group (110 min) (p = 0.001) as well as the M + T group (157 min) and the C group (p = 0.049). The study did not show any significant reduction of postoperative pain, VAS, after third molar surgery in patients who received adjunct pre-emptive intravenous administration of 1 mg/kg tramadol under midazolam sedation. Discussion and conclusion The lack of significant difference between the study and placebo groups indicates that tramadol at 1 mg/kg might be an insufficient dose, though the suitability for tramadol in oral and maxillofacial surgery has already been settled in other studies.
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| 10. |
- Eriksson, Lars B, et al.
(författare)
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Safety of adjunct pre-emptive intravenous tramadol with midazolam sedation for third molar surgery
- 2015
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Ingår i: Oral and Maxillofacial Surgery. - : Springer. - 1865-1550 .- 1865-1569. ; 19:4, s. 353-359
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: The purpose of this study was to evaluate patient safety, in terms of adverse events, alterations in blood pressure or oxygen saturation (SpO2) in two routine sedation procedures, with and without intravenous analgesia. METHODS: Patients referred for surgical removal of mandibular third molars were treated in a randomized, controlled, single-blinded procedure. Eighty-seven men and women, aged 18 to 44 years, were allotted to either of two treatment groups, midazolam + tramadol (M + T) and midazolam + saline (M + S) or to a control group (C), given no sedation. RESULTS: Tramadol at 1 mg/kg body weight resulted in a higher frequency of oxygen desaturation (SpO2 < 90 %) than a placebo (p = 0.002) but had no effect on mean SpO2 at the end point or at the end of surgery. In both the test groups, there was a significant decrease in diastolic blood pressure (p < 0.001) from baseline to the end of surgery. CONCLUSION: The results confirm that pre-emptive intravenous tramadol, administered at 1 mg/kg body weight as an adjunct to midazolam sedation for third molar surgery, offers a safe method. But, it should be noted that our previous study shows that it is not a particularly effective analgesic. Further testing is therefore warranted, using other doses or other drugs, to find a better intravenous protocol for postoperative analgesia, with maximum effect and minimal risk, in outpatient oral and maxillofacial surgery procedures.
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| 11. |
- Faria, Paulo Esteves Pinto, et al.
(författare)
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Immediate loading of implants in the edentulous mandible: a multicentre study.
- 2016
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Ingår i: Oral and maxillofacial surgery. - : Springer Science and Business Media LLC. - 1865-1569 .- 1865-1550. ; 20:4, s. 385-390
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this prospective study was to investigate the two-year outcomes following immediate loading of mono-cortically engaged implants.Thirty healthy mandible edentulous patients with an average age of 67.3years and presenting with sufficient bony ridge at the mandible symphysis were included in the study. Four Astra Tech, Ti-Oblast(®) implants were installed between the mental foramina using the mono-cortical anchorage technique. The primary stability of the implants was assessed by resonance frequency analysis (RFA). After uni-abutments were placed, a temporary bridge was constructed and fixed the same day. The definitive bridges were installed 6weeks after implant surgery. Five of 120 placed implants were lost in four patients during the first 6weeks and these patients were excluded from the follow-up. The changes in marginal bone level (n=20) were evaluated in Brazilian and Swedish groups at baseline, 6weeks, 6months, 12months and 24months. The RFA (n=30) was evaluated at baseline, 6weeks, 6months, 12months and 24months postoperatively.Compared with baseline measurements, the postoperative values for marginal bone level (6weeks, 6months, 12months and 24months) were significantly reduced (p<0.05), while no differences were observed in the RFA analysis (12months and 24months).The immediate loading of mono-cortically engaged implants in the edentulous mandible is safe and predictable and implant stability remains excellent after 2-year follow-up.
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| 12. |
- Lundberg, Joakim, et al.
(författare)
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Skeletal stability after maxillary distraction osteogenesis or conventional Le Fort i osteotomy in patients with cleft lip and palate : a superimposition-based cephalometric analysis
- 2024
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Ingår i: Oral and Maxillofacial Surgery. - : Springer Nature. - 1865-1550 .- 1865-1569. ; 28:2, s. 925-934
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: The aim was to assess skeletal stability after maxillary advancement using either distraction osteogenesis (DO) or conventional Le Fort I osteotomy (CO) in patients with cleft lip and palate (CLP) or cleft palate (CP) utilising a new superimposition-based cephalometric method.Method: This retrospective study included patients who were treated with DO (N = 12) or CO (N = 9). Sagittal and vertical changes after surgery, and skeletal stability at 18 months post-operatively were assessed with superimposition-based cephalometry, comparing lateral cephalograms performed pre-operatively (T0), post-operatively after CO or immediately after completed distraction in DO (T1), and at 18 months of follow-up (T2).Results: The mean sagittal movements from T0 to T2 in the DO and CO groups were 5.9 mm and 2.2 mm, respectively, with a skeletal relapse rate of 16% in the DO group and 15% in the CO group between T1 and T2. The vertical mean movement from T0 to T2 in the DO and CO groups was 2.8 mm and 2.0 mm, respectively, and the skeletal relapse rate between T1 and T2 was 36% in the DO group and 32% in the CO group.Conclusion: Sagittal advancement of the maxilla was stable, in contrast to the vertical downward movement, which showed more-extensive relapse in both groups. Despite more-extensive maxillary advancement in the DO group, the rates of skeletal relapse were similar.
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| 13. |
- Pantchev, Alexander, et al.
(författare)
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Endodontic surgery with and without inserts of bioactive glass PerioGlas® : a clinical and radiographic follow-up
- 2009
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Ingår i: Oral and maxillofacial surgery. - : Springer Science and Business Media LLC. - 1865-1569 .- 1865-1550. ; 13:1, s. 21-26
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: This study evaluated the use of bioactive glass, PerioGlas, after retrograde filling with Super EBA cement in the treatment of periapical bone destruction. STUDY DESIGN: Healing outcomes were followed up after endodontic surgery in 186 teeth. Outcomes were divided into two groups according to follow-up time: short- and long-term. The EBA group (n = 110) underwent endodontic surgery and retrograde filling with EBA cement. In the EBA + PerioGlas group (n = 76), PerioGlas was embedded in the bone cavity after retrograde filling. RESULTS: The success rate in the EBA + PerioGlas group was 72% compared with 56% in the Super EBA group at the short-term follow-up and 74% and 84%, respectively, at the long-term follow-up. Healing of periapical bone destruction classified as uncertain at the short-term follow-up was considered successful in two out of three cases at the long-term follow-up. CONCLUSION: This study found that PerioGlas as bone substitute did not significantly improve endodontic healing outcome.
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| 14. |
- Zheng, Xuewei, et al.
(författare)
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Adoption of additive manufacturing in oral and maxillofacial surgery among university and non-university hospitals in Sweden : findings from a nationwide survey.
- 2023
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Ingår i: Oral and Maxillofacial Surgery. - : Springer Science and Business Media LLC. - 1865-1550 .- 1865-1569.
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: Additive manufacturing (AM) is an innovative printing technology that can manufacture 3-dimensional solid objects by adding layers of material from model data. AM in oral and maxillofacial surgery (OMFS) provides several clinical applications such as surgical guides and implants. However, the adoption of AM in OMFS is not well covered. The purpose was to study the adoption of AM in OMFS in university and non-university hospitals in Sweden. Three research questions were addressed: What is the degree of using AM solutions in university and non-university hospitals?; What are AM solutions used?; How are the AM solutions accessed (production mode) in university hospitals and non-university hospitals?METHODS: A survey was distributed to OMF surgeons in Sweden. The questionnaire consisted of 16 questions. Data were analyzed through descriptive and content analysis.RESULTS: A total of 14 university and non-university hospitals were captured. All 14 hospitals have adopted AM technology and 11 of the hospitals adopted AM in OMFS. Orthognathic and trauma surgery are two major types of surgery that involve AM technology where material extrusion and vat polymerization are the two most used AM technologies in OMFS. The primary application of AM was in medical models and guides.CONCLUSION: Majority of Swedish university hospitals and non-university hospitals have adopted AM in OMFS. The type of hospital (university or non-university hospital) has no impact on AM adoption. AM in OMFS in Sweden can be perceived to be a mature clinical application.
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| 15. |
- Åkesson, Fredrik, et al.
(författare)
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Alveolar bone remodeling in virtually planned, bone-grafted vs non-grafted guided flapless implant surgery in the anterior maxilla : a cross-sectional retrospective follow-up study
- 2023
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Ingår i: Oral and Maxillofacial Surgery. - : Springer. - 1865-1550 .- 1865-1569. ; 27:1, s. 43-52
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: In patients who underwent virtual planning and guided flapless implant surgery for teeth missing in the anterior maxilla, we compared buccal bone loss between those treated with and without autogenous bone augmentation.METHODS: Of 22 patients with teeth missing because of trauma or aplasia, 10 (18 implant sites) were reconstructed with buccally placed bone graft harvested from the mandibular ramus, and 12 were non-reconstructed (16 sites). Baseline cone-beam computed tomography allowed for implant planning using the NobelClinician® software and was performed again at 1 year after functional loading. The marginal bone level was assessed radiographically at post-implant baseline and at follow-up.RESULTS: At follow-up, buccal bone loss differed significantly between groups at the central level of the implant (p = 0.0005) but not at the coronal level (p = 0.329). The mean marginal bone level change was 0.6 mm, with no significant between-group difference (p = 0.876). The actual implant position often deviated in the vertical or sagittal plane by an average of 0.3-0.6 mm from the planned position.CONCLUSION: Compared with non-reconstructed patients, reconstructed patients experienced significantly more buccal bone loss at the central level of implants. The groups did not differ at the coronal level or in marginal bone loss, possibly because of the more augmented bone at the central level among reconstructed patients. Differences between planned versus actual implant positions should be considered in situations of limited bone volume at the planned implant site.
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