An innovative method for three-dimensional bone reconstruction of the anterior mandible with preserved dentition using an allogeneic bone block: A 6-month follow-up.

IF 2.1 4区 医学 Q3 MEDICINE, RESEARCH & EXPERIMENTAL
Sylwia Hnitecka, Marzena Dominiak, Cyprian Olchowy, Tomasz Gedrange
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引用次数: 0

Abstract

Background: Bone defects around the teeth affect a large portion of the population. Bone regeneration in the area of existing teeth is completely different from that in an edentulous area. To date, no method has been developed for three-dimensional (3D) bone reconstruction in regions with preserved teeth.

Objectives: This study aimed to radiologically evaluate the results of the new method of 3D mandibular bone reconstruction in preserved dentition using a custom-made allogeneic bone block with a 6-month follow-up.

Material and methods: Alveolar ridge dimensions were radiographically assessed before and 6 months after reconstruction using cone beam computed tomography (CBCT) scans in 32 patients (192 teeth). Reconstruction used a bone block that had been previously planned and prepared using CAD/CAM technology.

Results: The observed changes in alveolar bone dimensions were highly significant in most cases (p < 0.001). The closer to the tooth root apex, the lower the bone growth in the sagittal dimension (average of the mean values for each tooth examined in the measured heights): CEJ2: 2.9 mm, ½ CEJ2: 2.7 mm, ¼ CEJ2: 1.9 mm, and API: 1.4 mm. The maximum bone growth in the vertical dimension was observed on tooth 43 (9.9 mm), followed by 32 (9.8 mm), 33 (8.5 mm), 31 (8.4 mm), 42 (8 mm), and 41 (7 mm). The degree of decrease in vestibular dehiscence of the bone was greater the closer the tooth was to the midline (average of -3.8 mm and -3.4 mm for the central incisors; average of -2.8 mm and -2.6 mm for the lateral incisors; average of -2.6 mm and -2.5 mm for the canines).

Conclusions: The results prove that it is possible to prevent bone dehiscence in patients undergoing orthodontic treatment, increasing the ability and effectiveness of covering recessions and improving the morphology of the lower part of the face.

使用异体骨块对保留牙列的前下颌骨进行三维骨重建的创新方法:为期 6 个月的随访。
背景:牙齿周围的骨缺损影响着很大一部分人。现有牙齿区域的骨再生与无牙区域的骨再生完全不同。迄今为止,尚未开发出在保留牙齿区域进行三维(3D)骨重建的方法:本研究旨在对使用定制异体骨块在保留牙区进行三维下颌骨重建的新方法的效果进行放射学评估,并进行为期 6 个月的随访:使用锥形束计算机断层扫描(CBCT)对 32 名患者(192 颗牙齿)重建前和重建后 6 个月的牙槽嵴尺寸进行放射学评估。重建使用的骨块是事先利用 CAD/CAM 技术规划和准备好的:在大多数情况下,观察到的牙槽骨尺寸变化都非常显著(p < 0.001)。越靠近牙根顶,骨生长的矢状维度越低(每颗受检牙齿测量高度的平均值):CEJ2:2.9 毫米,½ CEJ2:2.7 毫米,¼ CEJ2:1.9 毫米,API:1.4 毫米。垂直方向骨生长最大的是 43 号牙(9.9 毫米),其次是 32 号牙(9.8 毫米)、33 号牙(8.5 毫米)、31 号牙(8.4 毫米)、42 号牙(8 毫米)和 41 号牙(7 毫米)。牙齿越靠近中线,牙槽骨前庭开裂的减少程度越大(中切牙平均为-3.8毫米和-3.4毫米;侧切牙平均为-2.8毫米和-2.6毫米;犬齿平均为-2.6毫米和-2.5毫米):结果证明,可以预防正畸治疗患者的骨开裂,提高覆盖凹陷的能力和效果,改善面部下部的形态。
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来源期刊
Advances in Clinical and Experimental Medicine
Advances in Clinical and Experimental Medicine MEDICINE, RESEARCH & EXPERIMENTAL-
CiteScore
3.70
自引率
4.80%
发文量
153
审稿时长
6-12 weeks
期刊介绍: Advances in Clinical and Experimental Medicine has been published by the Wroclaw Medical University since 1992. Establishing the medical journal was the idea of Prof. Bogumił Halawa, Chair of the Department of Cardiology, and was fully supported by the Rector of Wroclaw Medical University, Prof. Zbigniew Knapik. Prof. Halawa was also the first editor-in-chief, between 1992-1997. The journal, then entitled "Postępy Medycyny Klinicznej i Doświadczalnej", appeared quarterly. Prof. Leszek Paradowski was editor-in-chief from 1997-1999. In 1998 he initiated alterations in the profile and cover design of the journal which were accepted by the Editorial Board. The title was changed to Advances in Clinical and Experimental Medicine. Articles in English were welcomed. A number of outstanding representatives of medical science from Poland and abroad were invited to participate in the newly established International Editorial Staff. Prof. Antonina Harłozińska-Szmyrka was editor-in-chief in years 2000-2005, in years 2006-2007 once again prof. Leszek Paradowski and prof. Maria Podolak-Dawidziak was editor-in-chief in years 2008-2016. Since 2017 the editor-in chief is prof. Maciej Bagłaj. Since July 2005, original papers have been published only in English. Case reports are no longer accepted. The manuscripts are reviewed by two independent reviewers and a statistical reviewer, and English texts are proofread by a native speaker. The journal has been indexed in several databases: Scopus, Ulrich’sTM International Periodicals Directory, Index Copernicus and since 2007 in Thomson Reuters databases: Science Citation Index Expanded i Journal Citation Reports/Science Edition. In 2010 the journal obtained Impact Factor which is now 1.179 pts. Articles published in the journal are worth 15 points among Polish journals according to the Polish Committee for Scientific Research and 169.43 points according to the Index Copernicus. Since November 7, 2012, Advances in Clinical and Experimental Medicine has been indexed and included in National Library of Medicine’s MEDLINE database. English abstracts printed in the journal are included and searchable using PubMed http://www.ncbi.nlm.nih.gov/pubmed.
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