Bone remodeling around implants placed after socket preservation: a 10-year retrospective radiological study

International Journal of Implant Dentistry

Brevi Bruno¹  Crespi Giovanni²  Crespi Roberto³  Covani Ugo³  Toti Paolo³  Menchini-Fabris Giovanni-Battista³ 

[1] Department of Maxillo-Facial Surgery, Hospital and University of Pisa, via Paradisa 2, 56124, Pisa, Italy;Department of Stomatology, Tuscan Stomatological Institute, c/o Versilia General Hospital, via Aurelia 335, 55049,

[2] Lido di Camaiore, Italy;School of Dentistry, Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro, 8, 00131, Rome, Italy;Department of Stomatology, Tuscan Stomatological Institute, c/o Versilia General Hospital, via Aurelia 335, 55049,

[3] Lido di Camaiore, Italy;

关键词: Alveolar ridge preservation;    Split crest procedure;    Xenogeneic bone substitute;    Collagen sponge;    Dental implants;   

DOI  :  10.1186/s40729-021-00354-7

来源: Springer

【 摘 要 】

BackgroundTo evaluate and compare the long-term clinical and radiological outcomes of post-extraction sockets after ridge preservation either with porcine xenograft or collagen alone. Patients underwent single-tooth extraction in the posterior mandible. Fresh extraction sockets were filled with pre-hydrated cortico-cancellous porcine bone or collagen sponge. Two or 3 months later, a ridge expansion technique with immediate implant positioning placement was performed. Primary (alveolar width changes) and secondary outcomes (adverse events and long-term maintenance of buccal plate covering the implant) were evaluated.ResultsThirty-four women and 20 men were selected: 30 implants (group A) placed into healed post-extraction sockets grafted with porcine bone and 24 (group B) into sockets filled with a collagen sponge. There was a significant loss in width in both groups from the first and second surgery (ranging between 2.7 mm and 4.5 mm). The ridge splitting with bone expansion resulted in significant long-term increases in width for both procedures and implant sites. Non-significant differences in alveolar width were registered between the groups at 10-year follow-up even if the analysis of the implant buccal bone coverage suggested that group A had significantly worst results.ConclusionsPorcine bone group had significantly better short-term outcomes with lower long-term maintenance of the buccal plate.

【 授权许可】

CC BY