Awad Khaled Ahmed Ibrahim, Tawik Mohamed Abdel-Monem, Hussein Mohamed Mohamed, El-Farag Shaimaa Ahmed Abo, Sameaa Sally El Sayed Abdel
Faculty of Dentistry, Kafr El-Sheikh University, Kafr El-Sheikh, Egypt.
Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
BMC Oral Health. 2025 Apr 25;25(1):642. doi: 10.1186/s12903-025-05940-4.
This study was designed to evaluate the clinical and radiographical outcome of tooth shell for maxillary alveolar ridge augmentation as an alternative to traditional autogenous bone shell graft.
Twenty eight patients with one or two maxillary extracted teeth (esthetic zone) in need for horizontal bone augmentation were divided into two groups (14 patients each). Group I (control group): bone augmentation was done by using bone shell technique (BST). Group II (study group): bone augmentation was done by using tooth shell technique (TST). Implant stability was evaluated at the time of implant placement, after 4 months (loading time), and 4 months after loading. Radiographic evaluation was made using Cone beam computed tomography (CBCT) scans before grafting (T0), immediately (T1), and 6 months post grafting (T2).
In this study, 30 implants were inserted in the esthetic zone. All implants were successfully osseointegrated. No statistically significant difference was found between the studied groups as regards implant stability (P > 0.05) assessed baseline, 4 months after implant placement, and 4 months after loading. The radiographic evaluation demonstrated a statistically significant lower median amount of graft resorption at 1 mm, 5 mm, and 10 mm & total among the study than the control group (p = 0.001, 0.001, 0.04 & 0.001 respectively).
TST used for lateral ridge augmentation has excellent dimensional stability and the least amount of graft resorption.
This study was retrospectively registered on www.
gov with registration number (NCT06416605) on 16 /5 /2024.
本研究旨在评估牙壳用于上颌牙槽嵴增高术的临床和影像学效果，作为传统自体骨壳移植的替代方法。
28例需要进行水平骨增量的上颌单颗或两颗拔牙（美学区）患者被分为两组（每组14例）。第一组（对照组）：采用骨壳技术（BST）进行骨增量。第二组（研究组）：采用牙壳技术（TST）进行骨增量。在种植体植入时、4个月后（加载时间）以及加载后4个月评估种植体稳定性。在植骨前（T0）、植骨后即刻（T1）和植骨后6个月（T2）使用锥形束计算机断层扫描（CBCT）进行影像学评估。
本研究在美学区植入了30颗种植体。所有种植体均成功实现骨整合。在评估基线、种植体植入后4个月和加载后4个月时，研究组之间在种植体稳定性方面未发现统计学上的显著差异（P>0.05）。影像学评估显示，研究组在1mm、5mm和10mm处以及总体上的植骨吸收中位数在统计学上显著低于对照组（分别为p = 0.001、0.001、0.04和0.001）。
用于侧方牙槽嵴增高的牙壳技术具有出色的尺寸稳定性和最少的植骨吸收量。
本研究于2024年5月16日在www.CLINICALTRIALS.gov上进行回顾性注册，注册号为（NCT06416605）。
