Safi Yaser, Behzadi Sepideh, Shafizadeh Marziyeh, Amid Reza, Kadkhodazadeh Mahdi
Department of Radiology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Department of Restorative Dentistry, School of Dentistry, Shahed University of Medical Sciences, Tehran, Iran.
J Adv Periodontol Implant Dent. 2022 Apr 20;14(1):20-25. doi: 10.34172/japid.2022.006. eCollection 2022.
The maxillary palatine process (MPP) is an excellent source of autogenous bone transplants for anterior maxillary reconstruction. This research aimed to determine the quantity and quality of accessible MPP as a donor location.
Cone-beam computed tomography (CBCT) scans of patients referred to the School of Dentistry were evaluated by a certified examiner. The harvestable MPP was defined as the space between the distal surfaces of maxillary first premolars. OnDemand 3D Imaging software was used to determine bone properties. SPSS software was used to investigate the following variables: Bone characteristics are correlated with age and gender, accessible volume, and palatal width and height. <0.05 was defined as the level of statistical significance.
This study was performed on CBCT scans of 81 subjects (41 females and 40 males). MPP volume and palatal heights were 1.33±0.53 cm3 and 20.86±5.51 mm, respectively. Maximum bone density was observed around lateral incisors. Palatal width was 33.81±2.42 mm between canines and 41.81±2.66 mm between premolars. The MPP volume was significantly greater in males (<0.001). Additionally, there was a positive correlation between the volume and palatal width (<0.05).
Within the constraints of this research, there is a limited supply of MMP accessible for use as a graft source, and it is best suited for treating localized bone lesions. The favorable link between palatal breadth and harvestable volume aids the surgeon in estimating the quantity of bone accessible during the first evaluation.
上颌腭突（MPP）是上颌前部重建自体骨移植的优质来源。本研究旨在确定作为供体部位的可获取MPP的数量和质量。
由一名认证检查人员对转诊至牙科学院患者的锥形束计算机断层扫描（CBCT）进行评估。可收获的MPP定义为上颌第一前磨牙远中面之间的空间。使用OnDemand 3D成像软件确定骨特性。使用SPSS软件研究以下变量：骨特征与年龄、性别、可获取体积以及腭部宽度和高度的相关性。将P<0.05定义为统计学显著性水平。
本研究对81名受试者（41名女性和40名男性）的CBCT扫描进行了分析。MPP体积和腭部高度分别为1.33±0.53 cm³和20.86±5.51 mm。侧切牙周围观察到最大骨密度。尖牙之间的腭部宽度为33.81±2.42 mm，前磨牙之间为41.81±2.66 mm。男性的MPP体积显著更大（P<0.001）。此外，体积与腭部宽度之间存在正相关（P<0.05）。
在本研究的限制范围内，可作为移植来源的MPP供应有限，最适合治疗局限性骨病变。腭部宽度与可收获体积之间的良好关联有助于外科医生在初次评估时估计可获取的骨量。
