Concentrated Growth Factor and Collagen As Barrier Materials in Alveolar Ridge Preservation for Posterior Teeth: a Prospective Cohort Study with One-year Follow-up

Overview

Journal Hua Xi Kou Qiang Yi Xue Za Zhi

Specialty Dentistry

Date 2024 Jul 25

PMID 39049655

Authors

Zhanfeng Zhu

Tingting Yang

Qinyi Chen

Weien Qiu

Yongshan Li

Yilan Lin

Yu Ban

Affiliations

Soon will be listed here.

Abstract

Objectives: This study aims to evaluate the efficacy of concentrated growth factor (CGF) membrane and collagen as barrier materials in sealing the alveolar socket in alveolar ridge preservation (ARP) in the posterior region during a one-year follow-up.

Methods: A total of 24 patients who underwent ARP in the posterior region were selected for inclusion and randomly assigned to the CGF group (12 cases) and Collagen group (12 cases). The patients in both groups underwent extraction of posterior teeth. The extraction sockets were filled with a bone substitute to the level of the pre-extraction buccal and lingual or palatal alveolar bone plates. The wounds in the CGF group were closed with a fabricated CGF overlaying the upper edge of the bone substitute material, whereas those in the Collagen group were closed with Bio-Oss Collagen. The implants were placed after 6 months. The evaluation was based on implant retention, re-grafting rate, and vertical and horizontal alveolar ridge bone volume changes measured by cone beam computed tomography (CBCT). Data were statistically analyzed using SPSS 28.0 software.

Results: No patient withdrew throughout the follow-up period. No implant failure and no severe peri-implant or mucosal soft tissue complications were observed. Six months after the operation, the degree of vertical alveolar ridge height resorption in the CGF group was lower than that in the Collagen group (<0.05). There were no statistically difference between the groups at 1 year after the operation (>0.05). The amount of bone reduction in horizontal alveolar ridge width showed no difference between the groups at 6 months and 1 year after surgery (>0.05).

Conclusions: CGF membrane and Bio-Oss Collagen as barrier materials for posterior ARP inhibited reduction in alveolar ridge bone mass.

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