| 1. |
- Berglundh, Tord, 1954, et al.
(author)
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Long-term outcome of surgical treatment of peri-implantitis. A 2-11-year retrospective study
- 2018
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In: Clinical Oral Implants Research. - : Wiley. - 0905-7161. ; 29:4, s. 404-410
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Journal article (peer-reviewed)abstract
- ObjectiveTo assess long-term clinical and radiological outcomes of surgical treatment of peri-implantitis. Material and methodsFiles and radiographs from 50 patients who had received surgical treatment for peri-implantitis were analyzed. Data on clinical characteristics prior to surgical therapy and at latest follow-up were obtained. In each radiograph, the marginal bone level was assessed at the mesial and distal aspects of the affected implants. The treatment included oral hygiene instruction, professional supra-mucosal instrumentation, and surgical therapy aiming at pocket elimination. Following flap elevation and removal of inflamed tissue, the affected implant was cleaned using gauze soaked in saline. Calculus was removed. When indicated, osseous re-contouring was carried out to facilitate pocket elimination. Flaps were adjusted, sutured, and compressed to the crestal bone. Supportive therapy including oral hygiene control was provided with 4-month intervals. ResultsTreatment was effective in resolving the inflammatory condition as documented by marked reduction in peri-implant probing depth and bleeding on probing scores together with crestal bone level preservation. Treatment outcome was significantly better at implants with non-modified surfaces than at implants with modified surfaces. The probability of an implant to exhibit no further bone loss or bone gain after treatment was high if the peri-implant mucosa at the site presented with shallow pockets and the absence of bleeding on probing at follow-up. ConclusionsThe results of the study revealed that (i) surgical treatment of peri-implantitis was effective in the long-term, (ii) outcome was better at implants with non-modified than with modified surfaces, and (iii) preservation of crestal bone support was consistent with healthy peri-implant tissue conditions.
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| 2. |
- Donati, Mauro, 1966, et al.
(author)
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Implant-supported single-tooth restorations. A 12-year prospective study
- 2016
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In: Clinical Oral Implants Research. - : Wiley. - 0905-7161. ; 27:10, s. 1207-1211
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Journal article (peer-reviewed)abstract
- ObjectiveThe aim of this study was to evaluate prospectively the 12-year outcome of implant-supported single-tooth restorations. Material and methodsOriginally 45 self-tapping Astra Tech TiOblast((R)) ST-implants were installed by a two-stage protocol in 40 subjects requiring single-tooth prosthetic replacement for a missing tooth. Clinical and radiologic examinations were performed at completion of the prosthetic treatment 4-7months after implant installation surgery and after 5 and 12years in function. ResultsAt 12years 31 patients and 35 implants were available for evaluation. The overall failure rate after 12years was 10.3% on the subject level and 9.1% on the implant level. The mean bone loss amounted to 0.67mm (SD 2.20) on a subject level and 0.47mm (1.72) on an implant level. Three subjects (10%) and three implants (8.6%) were diagnosed with peri-implantitis. Five subjects had experienced technical complications; three incidences of loosening of the abutment retention screw during the first 5years and two minor porcelain fracture of the crown (two patients) between 5- and 12-years of follow-up. ConclusionThe findings reported in this 12-year prospective case series suggest that the use of the Astra Tech dental implants may be a valid treatment alternative for single-tooth replacement prostheses.
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| 3. |
- Donati, Mauro, 1966, et al.
(author)
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Marginal bone loss at implants with different surface characteristics - A 20-year follow-up of a randomized controlled clinical trial.
- 2018
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In: Clinical oral implants research. - : Wiley. - 1600-0501 .- 0905-7161. ; 29:5, s. 480-487
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Journal article (peer-reviewed)abstract
- This report is a 20-year follow-up of a randomized controlled clinical trial evaluating the potential long-term effect of a modified implant surface on the preservation of the peri-implant marginal bone level.In each of 51 patients and for each fixed partial denture (FPD), by randomization at least one implant installed had a non-modified turned surface and one a modified and roughened surface (TiOblast® ). Clinical and radiological examinations were performed at various follow-up intervals. Primary outcome variables were peri-implant marginal bone level change from time of loading and proportion of implants with no bone loss at 20years. Multilevel analysis followed by nonparametric and Pearson's Chi-Square tests were applied for statistical analysis.At the 20-year follow-up, 25 patients carrying 64 implants were available for evaluation. Turned and TiOblast implants presented with a mean bone level change from the time of FDP delivery amounting to -0.41mm (95% CI -0.84/0.02) and -0.83mm (95% CI -1.38/-0.28) respectively (inter-group comparison p>.05). 47% of the Turned and 34% TiOblast implants (p>.05) showed no bone loss. All but one of these implants were free of bacterial plaque and inflammation as well as presented with probing pocket depths ≤5mm at both the 5- and 20-year follow-up examinations.It is suggested that a moderate increase of implant surface roughness has no beneficial effect on long-term preservation of the peri-implant marginal bone level.
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| 4. |
- Lindhe, Jan, 1935, et al.
(author)
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The Mucosa at Teeth and Implants
- 2015
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In: Clinical periodontology and implant dentistry, 6th ed. (eds.) Niklaus P. Lang & Jan Lindhe. - Oxford, UK : Wiley-Blackwell. - 9780470672488 ; , s. 83-99
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Book chapter (peer-reviewed)
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| 5. |
- Wennström, Jan, 1947, et al.
(author)
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Periodontal Surgery: Access Therapy
- 2015
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In: Clinical Periodontology and Implant Dentistry. 6th ed. (eds.) Niklaus P. Lang & Jan Lindhe. - Oxford, UK : Wiley-Blackwell. - 9780470672488 ; , s. 767-804
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Book chapter (peer-reviewed)
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| 6. |
- Araujo, M. G., et al.
(author)
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Peri-implant health
- 2018
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In: J Clin Periodontol. - : Wiley. - 0303-6979. ; 45
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Journal article (peer-reviewed)abstract
- ObjectiveThe aim is to define clinical and histologic characteristics of peri-implant tissues in health and describe the mucosa-implant interface. ImportanceAn understanding of the characteristics of healthy peri-implant tissues facilitates the recognition of disease (i.e., departure from health). FindingsThe healthy peri-implant mucosa is, at the microscopic level, comprised of a core of connective tissue covered by either a keratinized (masticatory mucosa) or non-keratinized epithelium (lining mucosa). The peri-implant mucosa averages about 3 to 4mm high, and presents with an epithelium (about 2mm long) facing the implant surface. Small clusters of inflammatory cells are usually present in the connective tissue lateral to the barrier epithelium. Most of the intrabony part of the implant appears to be in contact with mineralized bone (about 60%), while the remaining portion faces bone marrow, vascular structures, or fibrous tissue. During healing following implant installation, bone modeling occurs that may result in some reduction of the marginal bone level. ConclusionsThe characteristics of the peri-implant tissues in health are properly identified in the literature, including tissue dimensions and composition. Deviation from the features of health may be used by the clinician (and researcher) to identify disease, including peri-implant mucositis and peri-implantitis.
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| 7. |
- Araujo, M. G., et al.
(author)
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Peri-implant health
- 2018
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In: Journal of Periodontology. - : Wiley. - 0022-3492. ; 89
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Journal article (peer-reviewed)abstract
- Objective: The aim is to define clinical and histologic characteristics of peri-implant tissues in health and describe the mucosa-implant interface. Importance: An understanding of the characteristics of healthy peri-implant tissues facilitates the recognition of disease (i.e., departure from health). Findings: The healthy peri-implant mucosa is, at the microscopic level, comprised of a core of connective tissue covered by either a keratinized (masticatory mucosa) or non-keratinized epithelium (lining mucosa). The peri-implant mucosa averages about 3 to 4mm high, and presents with an epithelium (about 2mm long) facing the implant surface. Small clusters of inflammatory cells are usually present in the connective tissue lateral to the barrier epithelium. Most of the intrabony part of the implant appears to be in contact with mineralized bone (about 60%), while the remaining portion faces bone marrow, vascular structures, or fibrous tissue. During healing following implant installation, bone modeling occurs that may result in some reduction of the marginal bone level. Conclusions: The characteristics of the peri-implant tissues in health are properly identified in the literature, including tissue dimensions and composition. Deviation from the features of health may be used by the clinician (and researcher) to identify disease, including peri-implant mucositis and peri-implantitis.
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| 8. |
- Araujo, M. G., et al.
(author)
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Ridge alterations following grafting of fresh extraction sockets in man. A randomized clinical trial
- 2015
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In: Clinical Oral Implants Research. - : Wiley. - 0905-7161. ; 26:4, s. 407-412
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Journal article (peer-reviewed)abstract
- ObjectiveTo evaluate dimensional alterations of the alveolar ridge that occurred following tooth extraction at sites grafted with Bio-Oss((R)) Collagen. Material and methodsTwenty-eight subjects with maxillary incisors, canines, and premolars scheduled for extraction were included. The tooth was carefully removed. The patients were randomly assigned to a test or a control group. In the test group patients, Bio-Oss((R)) Collagen was placed in the fresh extraction socket while in the controls no grafting was performed. Radiographic examination (cone beam computed tomograms, CBCT) was performed immediately after tooth extraction and socket treatment. Four months later, a new CBCT was obtained. In the radiographs, (i) the distance (mm) between base of the alveolar process (apex) and the buccal and palatal crests was determined, (ii) the outer profile of alveolar process of the experimental sites was outlined, and the cross section of the area (mm(2)) determined. ResultsAfter 4months of healing, the buccal and to a less extent also the palatal bone plate had become markedly reduced in height. The placement of a biomaterial in the socket failed to prevent resorption of the buccal and palatal bone walls. The cross-sectional area of the control ridge was reduced about 25% and of the test ridge with 3%. ConclusionThe placement of a xenograft in fresh extraction sockets markedly counteracted the reduction in the hard tissue component of the edentulous sites.
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| 9. |
- Berglundh, Tord, 1954, et al.
(author)
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Peri-implant Mucositis and Peri-implantitis
- 2015
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In: Clinical periodontology and implant dentistry, 6th ed. Niklaus P. Lang & Jan Lindhe (eds.). - Oxford, UK : Wiley-Blackwell. - 9780470672488
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Book chapter (peer-reviewed)
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| 10. |
- Berglundh, Tord, 1954, et al.
(author)
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Treatment of Peri-implant Mucositis and Peri-implantitis
- 2015
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In: Clinical periodontology and implant dentistry, 6th ed. Niklaus P. Lang & Jan Lindhe (eds.). - Oxford, UK : Wiley-Blackwell. - 9780470672488 ; , s. 861-869
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Book chapter (peer-reviewed)
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