Abstract
Aim
The present study evaluated the clinical and radiological stability of hard and soft tissues following alveolar socket preservation (ASP) procedure with a follow-up of 5 year from implant insertion.
Materials and methods
The initial sample consisted of seven patients who underwent single tooth extraction and ASP procedure by means of demineralized bovine bone mineral particles covered with a porcine-derived non-cross-linked collagen matrix (CM). Each patient received a submerged single implant in the healed site. Mesial and distal peri-implant marginal bone resorption (MBR) rates were assessed radiographically at 1 year (T1) and 5 years (T2) after implant placement (baseline value).
Results and Statistics
No dropouts occurred up to 5 years. At T1, the MBR was 0.08 ± 0.16 mm at the mesial aspect and 0.1 ± 0.12 mm at the distal aspect. This difference was not statistically significant (P = 0.867). At T2, the mesial MBR was 0.15 ± 0.17 mm and the distal MBR was 0.11 ± 0.14 mm, with a non-statistically significant difference (P = 0.532). Therefore, no statistically significant differences were detected comparing mesial and distal MBR at any time point. With respect to the intra-group comparisons, no differences were observed comparing the different study periods within each variable. Indeed, the comparison between T0, T1 and T2 was non-statistically significant at both mesial (P = 0.06) and distal (P = 0.06) aspects. After 5 years, the volume of the soft tissues appeared clinically well maintained with a natural aspect around dental implants and adjacent teeth.
Conclusion
ASP using demineralized bovine bone mineral in combination with CM proved to be an effective technique to maintain stable dimensional volumes of both hard and soft tissues.
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Availability of Data and Materials
The datasets used and/or analyzed during the current study are exposed in Table 1. Pictures are, however, available from the corresponding author upon reasonable request.
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CM and MB conceived the ideas. MM collected the data. PPP and MM analyzed the data. MB and FS led the writing. PPP and RV led the review. All authors gave final approval of the manuscript and agree to be accountable for all aspects of the work.
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The study was approved by the local institutional review board, and it was conducted according to the principles articulated in the Helsinki Declaration of 1975 for biomedical research involving human subjects, as revised in 2000. All patients were informed about the nature of the study and gave their written consent.
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Beretta, M., Maiorana, C., Manfredini, M. et al. Marginal Bone Resorption Around Dental Implants Placed in Alveolar Socket Preserved Sites: A 5 Years Follow-up Study. J. Maxillofac. Oral Surg. 20, 381–388 (2021). https://doi.org/10.1007/s12663-020-01367-2
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DOI: https://doi.org/10.1007/s12663-020-01367-2