人群上颌中切牙颊骨壁形态与厚度的CBCT研究。

IF 1.5 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Frontiers in dental medicine Pub Date : 2024-11-29 eCollection Date: 2024-01-01 DOI:10.3389/fdmed.2024.1472028
Yaping Song, Song Yang, Chao Wang
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引用次数: 0

摘要

本研究的目的是测量和分析上颌中切牙颊骨壁(bual bone wall, BBW)的解剖形态和厚度,为即刻种植手术提供理论依据。收集上颌中切牙372颗,根据牙根位置和牙冠覆盖程度分为B型和P型。病例分为男女两组,男性180例,女性192例。BBW的厚度在三个测量位置测量:牙髓-牙釉质交界处(CEJ)、根中、根尖4 mm。不同类型BBW的数量和比例分别为:B1(54, 14.52%)、B2(72, 19.35%)、B3(61, 16.40%)、P1(76, 20.43%)、P2(66, 17.74%)、P3(43, 11.56%)。在B型组中,B3型组在根尖至CEJ和根中4mm处BBW最厚(0.89 mm±0.09 mm, 0.56 mm±0.07 mm)。B2中根尖处BBW厚度最大(0.46 mm±0.05 mm)。p型组3个测量部位BBW均以P3最厚(1.10 mm±0.08 mm、1.04 mm±0.11 mm、3.59 mm±0.12 mm)。男性上颌中切牙BBW较女性厚。得出的结论是,上颌中切牙的大部分BBW都很薄,部分上颌中切牙的BBW仅覆盖到CEJ顶端4mm处,其他地方没有明显的骨壁覆盖。这种类型的上颌中切牙在种植手术后出现颊软硬组织衰退甚至骨开窗的风险较高。因此,使用锥形束计算机断层扫描(CBCT)评估牙根的三维位置和测量BBW的厚度是至关重要的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Morphology and thickness of the buccal bone wall of the maxillary central incisors in population: a CBCT study.

The objective of this study was to measure and analyze the anatomical morphology and thickness of the buccal bone wall (BBW) of the maxillary central incisors, providing a theoretical basis for immediate implant surgery. A total of 372 maxillary central incisors were collected and classified into B and P types based on the root position and the degree of coverage of the BBW. The cases were divided into male and female groups, with 180 males and 192 females. The thickness of the BBW was measured at three measurement locations: 4 mm apical to the cementoenamel junction (CEJ), the mid-root, and the root apex. The number and proportion of various types of BBW are as follows: B1 (54, 14.52%), B2 (72, 19.35%), B3 (61, 16.40%), P1 (76, 20.43%), P2 (66, 17.74%), and P3 (43, 11.56%). In the B type group, the thickest BBW at 4 mm apical to the CEJ and the mid-root was observed in B3 (0.89 mm ± 0.09 mm, 0.56 mm ± 0.07 mm). The thickest BBW at the root apex was observed in B2 (0.46 mm ± 0.05 mm). In the P-type group, the thickest BBW at all three measurement locations was observed in P3 (1.10 mm ± 0.08 mm, 1.04 mm ± 0.11 mm, 3.59 mm ± 0.12 mm). The BBW of the maxillary central incisors in males was thicker than that in females. The conclusion drawn was that most BBW of the maxillary central incisors are thin, with a portion of the maxillary central incisors having only a thin BBW coverage at 4 mm apical to the CEJ and no significant bone wall coverage elsewhere. This Type of maxillary central incisor presents a higher risk of buccal soft and hard tissue recession and even bone fenestration after implant surgery. It is, therefore, crucial to assess the three-dimensional position of the root and measure the thickness of the BBW using Cone-beam computed tomography (CBCT).

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CiteScore
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