| 1. |
- Wennström, Jan, 1947, et al.
(författare)
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Is there a need for keratinized mucosa around implants to maintain health and tissue stability?
- 2012
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Ingår i: Clinical Oral Implants Research. - : Wiley. - 0905-7161. ; 23, s. 136-146
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Tidskriftsartikel (refereegranskat)abstract
- Aim The objective of the present review was to analyze the literature with regard to the need for keratinized mucosa around implants to maintain health and tissue stability. Methods Human and animal studies were identified through electronic and hand searches. Predetermined outcome measures were (i) implant loss, (ii) peri-implant health, (iii) oral hygiene, (iv) soft-tissue recession, (v) change in marginal bone level, and (vi) patient-centered outcomes. With respect to outcome variables, change in attachment level, soft-tissue recession and change in peri-implant bone level were only retrieved from longitudinal studies. For remaining parameters, cross-sectional studies were also considered. Results Nineteen relevant publications were identified (17 human and 2 animal studies). Due to marked heterogeneity in study design and reported data, no statistical analysis of retrieved data was feasible. Twelve human studies reported plaque scores for sites with adequate (=2 mm) and inadequate (<2 mm) width of keratinized mucosa, and in five studies, an inadequate width was associated with a significant higher plaque score. Half of the studies showed significantly higher bleeding scores at implants with < 2 mm of keratinized mucosa, while the majority of publications (8 of 10) found no differences for probing depths. Two of three longitudinal studies reporting on recessions described no long-term differences with regard to the amount of keratinized mucosa. Evidence on the effect of keratinized mucosa on bone-level changes or implant loss was scarce, and no conclusions could be drawn. No article reporting patient-centered outcomes could be identified. Conclusion Collectively, the findings of this review show that evidence in support of the need for keratinized tissues around implants to maintain health and tissue stability is limited.
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| 2. |
- Tomasi, Cristiano, 1964, et al.
(författare)
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Clinical research of peri-implant diseases--quality of reporting, case definitions and methods to study incidence, prevalence and risk factors of peri-implant diseases.
- 2012
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Ingår i: Journal of clinical periodontology. - 1600-051X. ; 39:Suppl 12, s. 207-23
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Forskningsöversikt (refereegranskat)abstract
- Aim: To review the quality of reporting and the methodology of clinical research on the incidence, prevalence and risk factors of peri-implant diseases. Methods: A MEDLINE search was conducted for cross-sectional, case-control and prospective longitudinal studies reporting on peri-implant diseases. To evalu- ate the quality of reporting of the selected studies the STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) checklist was utilized. Results: The search provided 306 titles and abstracts, out of which 40 were selected for full-text analysis. Finally, 16 studies were included out of which five assessed prevalence and only two the incidence of peri-implant diseases. 13 articles studied risk indicators for peri-implant diseases. None of the scrutinized articles adhered fully to the STROBE criteria. The large majority of articles did not (i) clearly state the applied study design, (ii) describe any effort to address potential sources of bias, (iii) explain how missing data were addressed, (iv) per- form any kind of sensitivity analysis, (v) indicate the number of participants with missing data for each variable of interest. Conclusion: Collectively, the findings of this review indicate a need for improved reporting of epidemiological studies on peri-implant diseases.
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