Radiological measurement and analysis of aesthetic implantation in maxillary incisor positions
10.13591/j.cnki.kqyx.2024.06.004
- VernacularTitle:上颌切牙区美学种植相关影像学测量及分析研究
- Author:
Yingying CHEN
1
;
Wenli WU
;
Ming SHEN
Author Information
1. 南京医科大学附属口腔医院综合诊疗科,口腔疾病研究与防治国家级重点实验室培育建设点(南京医科大学),江苏省口腔转化医学工程研究中心,江苏南京(210029)
- Keywords:
maxillary incisor;
dental implant;
labial alveolar bone thickness;
mesiodistal space
- From:
STOMATOLOGY
2024;44(6):421-425
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the labial alveolar bone thickness of maxillary incisors and mesiodistal space in the maxillary adjacent central and lateral incisors based on cone beam computed tomography(CBCT)image data,and provide reference for aesthetic implantation in cases of consecutive missing maxillary incisors.Methods CBCT image data of 619 patients were selected in this study.The labial alveolar bone thickness of maxillary incisors as well as the mesiodistal space in the maxillary adjacent central and lateral inci-sors were measured at three millimeters apical to the cementoenamel junctio,followed by statistical analysis.Results The labial alveo-lar bone thickness at the maxillary central incisor and lateral incisor locations was(1.03±0.32)mm and(0.96±0.36)mm,respectively,with central incisors having greater thickness than lateral incisors.The mesiodistal space in the maxillary adjacent central and lateral incisors was(15.94±1.18)mm,with males(16.31±1.13)mm exhibiting slightly greater space than females(15.59±1.12)mm,showing no left-right positional differences.Among these,5.01%failed to satisfy a space of 14 mm.Conclusion The majority of maxillary incisors fail to meet the ideal thickness requirements of labial alveolar bone for implantation,necessitating bone augmentation surgery.For the maxillary adjacent central and lateral incisors,approximately 5.01%of the mesiodistal spaces fail to meet the essential horizontal distance for the placement of two implants.In such situations after tooth loss,it is recommended to place only one implant in the region of the central incisor and aprosthetic restoration consisting of an implant crown on this implant connected with a cantilever at the position of the lateral incisor for long-term aesthetic results.
