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- Abrahamsson, Kajsa H., 1956, et al.
(författare)
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Altered expectations on dental implant therapy; views of patients referred for treatment of peri-implantitis
- 2017
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Ingår i: Clinical Oral Implants Research. - : Wiley. - 0905-7161 .- 1600-0501. ; 28:4
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Tidskriftsartikel (refereegranskat)abstract
- © 2016 John Wiley & Sons A/S.Aim: The aim was to explore patients' reactions on being diagnosed with peri-implantitis, their opinions on dental implant therapy and expectations on treatment of the disease. Material and methods: The study subjects were patients referred to a specialist clinic for treatment of peri-implantitis. The method of grounded theory was used in collecting and analyzing data. Audiotaped, thematized open-ended interviews were conducted. The interviews were transcribed verbatim and consecutively analyzed in hierarchical coding processes that continued until saturation was met (n = 15). Results: In the analysis, a conceptual model was generated that illuminated a process among patients. From having very high initial expectations on dental implant therapy as a permanent solution of oral/dental problems, patients realized that dental implants, such as teeth, require continuous care and that there is no guarantee for that dental implants provides a treatment alternative free from future problems. The core concept of the model "altered expectations on dental implant therapy" was composed of three main categories: "initial expectations on dental implant therapy and living with dental implants", "being referred to periodontist and become diagnosed with peri-implantitis" and "investing again in an expensive therapy with no guarantee for the future". Conclusion: Patients may have unrealistically high expectations on dental implant therapy. The results illuminate the importance of patient-centered communication in dentistry and that treatment decisions should be based not only on professional expertise but also on expectations, abilities, wishes and life circumstances of the individual patient.
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| 2. |
- Dimenäs, Sandra L., 1989, et al.
(författare)
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A person-centred, theory-based, behavioural intervention programme for improved oral hygiene in adolescents: A randomized clinical field study
- 2022
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Ingår i: Journal of Clinical Periodontology. - : Wiley. - 0303-6979 .- 1600-051X. ; 49:4, s. 237-387
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Tidskriftsartikel (refereegranskat)abstract
- Aim: To test the effectiveness of a person-centred and theory-based educational intervention to increase adolescents′ adherence to adequate oral hygiene behaviour, that is, self-performed periodontal infection control. Materials and Methods: Data were derived from a prospective, multi-centred, two-arm, quasi-randomized field study in which treatment was performed by dental hygienists (DHs) within the Public Dental Service, Västra Götaland, Sweden. Adolescents with poor oral hygiene conditions were invited to participate. The test intervention was based on cognitive behavioural theory and principles, and the DHs used a collaborative communicative approach, inspired by motivational interviewing. The control intervention consisted of conventional information/instruction. Clinical assessments and oral hygiene behaviours were evaluated at 6 months. Results: Three-hundred and twelve adolescents were enrolled, of whom 274 followed the treatment to 6-month follow-up. There were significant improvements in gingival bleeding and plaque scores for both treatment groups at 6 months, with significantly greater improvements in the test group. Adolescents in the test group brushed their teeth and used interdental cleaning aids more frequently compared to participants in the control group at 6 months. Conclusion: A person-centred and theory-based oral health education programme is more effective than conventional oral health education in improving adolescents' oral hygiene behaviour and periodontal infection control. ClinicalTrials.gov (NCT02906098). © 2022 The Authors. Journal of Clinical Periodontology published by John Wiley & Sons Ltd.
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| 3. |
- Veltri, Mario, et al.
(författare)
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Three-Dimensional buccal bone anatomy and aesthetic outcome of single dental implants replacing maxillary incisors
- 2016
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Ingår i: Clinical Oral Implants Research. - : Wiley. - 0905-7161. ; 27:8, s. 956-963
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Tidskriftsartikel (refereegranskat)abstract
- ObjectivesThis case series investigated by means of CBCT, buccal bone three-dimensional anatomy at delayed, two-stage implants in the maxillary incisal tooth region. Moreover, the relation between buccal bone anatomy and soft tissue aesthetics was assessed. Material and methodsTwelve implants were analysed after on average 8.9years in function. Baseline and re-evaluation photographs were assessed using the pink aesthetic score (PES). Marginal bone changes were measured from intraoral X-rays. The buccal bone volume associated with the implant and the implant surface not covered by visible buccal bone was computed on CBCT data sets. Buccal bone thickness and level were assessed, as well as the thickness of the crest distally and mesially of the implant. Changes in soft tissue forms and correlation between aesthetics and bone anatomy were calculated by nonparametric statistics. ResultsBuccal bone level was located 3.8mm apical of the implant shoulder, and none of the implants had complete bone coverage. Buccal bone volume was 144.3mm(3), and 4.29mm(3) in the more coronal 2mm portion. PES did not differ at re-evaluation (9.7) and baseline (9.2). PES was directly correlated with crestal thickness mesially and distally of the implant shoulder. No other significant correlations were observed between bone anatomy and PES or buccal peri-implant health. Marginal bone gain over time was associated with greater coronal bone volume buccally and with greater buccal and marginal bone thickness, while loss was related to less or no bone. ConclusionsWithin present limitations, acceptable and stable aesthetics are not jeopardized by a thin or missing buccal bone.
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| 7. |
- Abrahamsson, Ingemar, 1953, et al.
(författare)
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Early bone formation adjacent to rough and turned endosseous implant surfaces. An experimental study in the dog
- 2004
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Ingår i: Clinical Oral Implants Research. - : Wiley. - 0905-7161 .- 1600-0501. ; 15:4, s. 381-92
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To validate a proposed model (Berglundh et al. 2003) and to evaluate the rate and degree of osseointegration at turned (T) and sand blasted and acid etched (SLA) implant surfaces during early phases of healing. MATERIAL AND METHODS: The devices used for the study of early healing had a geometry that corresponded to that of a solid screw implant with either a SLA or a T surface configuration. A circumferential trough had been prepared within the thread region (intra-osseous portion) that established a geometrically well-defined wound chamber. Twenty Labrador dogs received totally 160 experimental devices to allow the evaluation of healing between 2 h and 12 weeks. Both ground and decalcified sections were prepared from mesial/distal and buccal/lingual device sites. Histometric and morphometric analyses of the ground sections and morphometric analysis of the tissue components in decalcified sections were performed. RESULTS: The ground sections provided an overview of the various phases of tissue formation, while the decalcified, thin sections enabled a more detailed study of events involved in bone tissue modeling and remodeling for both SLA and T surfaces. The initially empty wound chamber became occupied with a coagulum and a granulation tissue that was replaced by a provisional matrix. The process of bone formation started already during the first week. The newly formed bone present at the lateral border of the cut bony bed appeared to be continuous with the parent bone, but on the SLA surface woven bone was also found at a distance from the parent bone. Parallel-fibered and/or lamellar bone as well as bone marrow replaced this primary bone after 4 weeks. In the SLA chambers, more bone-to-device contact, more initial woven bone and earlier lamellar bone formation was found than in the T chambers. CONCLUSION: Osseointegration represents a dynamic process both during its establishment and its maintenance. While healing showed similar characteristics with resorptive and appositional events for both SLA and T surfaces, the rate and degree of osseointegration were superior for the SLA compared with the T chambers.
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| 8. |
- Abrahamsson, Ingemar, 1953, et al.
(författare)
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Early bone healing to implants with different surface characteristics. A pre-clinical in vivo study
- 2023
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Ingår i: Clinical Oral Implants Research. - : Wiley. - 0905-7161 .- 1600-0501. ; 34:4, s. 312-9
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Tidskriftsartikel (refereegranskat)abstract
- AimTo examine early bone healing around implants with non-modified and modified surfaces. Material & MethodsFour implants with 4 different surface characteristics were installed in one side of the mandible following tooth extraction in 6 dogs. Implants in group A had a non-modified, turned surface, while implants in group B had a surface modification consisting of TiO-blasting and sequential acid-etching in oxalic and hydrofluoric acid. The surface modification of implants in group C was confined to sequential acid-etching in oxalic and hydrofluoric acid and Group D implants had a surface modification of TiO-blasting and acid-etching in hydrofluoric acid. The implant installation procedures were repeated in the opposite side of the mandible 4 weeks later. Biopsies were obtained and prepared for histological analysis 2 weeks later. ResultsB and C implants had a higher degree of bone-to-implant contact (BIC%) than A and D implants at 2 weeks of healing. At 6 weeks of healing, the BIC% was higher at B than at A, C and D implants, and higher at C implants than at A implants. The amount of newly formed bone in contact with the implant within the defect area at 2 weeks was higher at implants with modified surfaces (groups B, C and D) than at implants with a non-modified surface (group A). Corresponding results at 6 weeks were superior at B implants. ConclusionIt is suggested that an implant surface modification with acid-etching in oxalic and hydrofluoric acid promotes early formation of bone-to-implant contact.
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| 10. |
- Abrahamsson, Ingemar, 1953, et al.
(författare)
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Healing at fluoride-modified implants placed in wide marginal defects: an experimental study in dogs.
- 2008
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Ingår i: Clinical oral implants research. - : Wiley. - 0905-7161 .- 1600-0501. ; 19:2, s. 153-9
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To study the healing at fluoride-modified implants placed in wide circumferential defects. Material and methods: Six mongrel dogs were used. The mandibular premolars and first molars were extracted. Three months later four implants were placed in one side of the mandible of each dog. The control implants (MicroThread(trade mark)) had a TiOblast surface, while the test implants (OsseoSpeed(trade mark)) had a fluoride-modified surface. Two implants of each type were placed. The marginal 50% of the prepared canal was widened using step drills. Following installation a 1 mm wide gap occurred between the implant surface and the bone wall in the defect. All implants were submerged. The installation procedure was repeated in the opposite side of the mandible 4 weeks after the first implant surgery. Two weeks later the animals were euthanized and block biopsies containing the implant and surrounding tissues were prepared for histological analysis. Results: The histological analysis revealed that a significantly larger area of osseointegration was established within the defect at fluoride-modified implants than at implants with a TiOblast surface after 6 weeks of healing. Further, the degree of bone-to-implant contact within the defect area was larger at fluoride-modified implants than at the TiOblast implants. Conclusion: It is suggested that the fluoride-modified implant surface promotes bone formation and osseointegration.
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