1. Alveolar Bone Morphologic Predictors for Guided Bone Regeneration Outcome in Anterior Maxilla
- Author
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Luo-Man Gan, Qian-Rong Zhou, Yan Zhang, You-Cheng Yu, Zhen-Ze Yu, Yang Sun, Rui-Xue Li, Xing-Wen Wu, and Fei Yang
- Subjects
Guided bone regeneration ,Cone beam computed tomography ,Single-tooth implants ,Alveolar ridge augmentation ,Clinical study ,Dentistry ,RK1-715 - Abstract
ABSTRACT: Objectives: This study aimed to explore the influence of alveolar bone morphologic variables on the outcome of guided bone regeneration (GBR) in the anterior maxilla region. Methods: Twenty-eight patients who received single maxillary anterior tooth delayed implant placed simultaneously with GBR were recruited. Baseline data including age, gender, implant site, implant brand, and bone graft materials were recorded. The resorption rate of the grafted bone (RRGB), labial bone width at 0 mm, 2 mm, and 4 mm apical to the implant platform at Tn (LBW0Tn, LBW2Tn, LBW4Tn), implant angulation (IA), maximum bone graft thickness (MBGT), bone graft volume (BGV), and the initial bone morphologic variables bone concavity depth (BCD) and bone concavity angulation (BCA) were measured. The Pearson correlation analysis, analysis of variance (ANOVA), and optimal binning method were used to explore the potential predictors for GBR. Results: Among 28 patients, the labial bone width of implant and bone graft volume decreased significantly when measured 6 months after surgery. The mean percentage of RRGB was 49.78%. RRGB was not correlated with gender, age, bone graft material, IA, MBGT, bone graft volume at T1, implant site, and implant brand (P > .05). BCD and BCA were each moderately correlated with RRGB (r = −0.872 [P < .001] and r = 0.686 [P < .001], respectively). A BCD ≥1.03 mm and a BCA
- Published
- 2024
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