Kumar Ashish, Batra Puneet, Sharma Karan, Raghavan Sreevatsan, Talwar Aditya, Srivastava Amit, Sood Sundereshwer Chander
Department of Orthodontics and Dentofacial Orthopedics, Institute of Dental Sciences and Technologies, Modinagar, Uttar Pradesh, India.
Department of Orthodontics and Dentofacial Orthopedics, Manav Rachna Dental College, Faridabad, Haryana, India.
Indian J Plast Surg. 2022 Oct 26;56(2):138-146. doi: 10.1055/s-0042-1756137. eCollection 2023 Apr.
The objective of our study was to derive an objective assessment scale for three-dimensional (3D) qualitative and quantitative evaluation of secondary alveolar bone grafting (SABG) using cone-bone computed tomography (CBCT) in patients with unilateral cleft lip and palate (UCLP). CBCT scans for pre- and 3-month post-SABG were reviewed for bone volume, height, width, and density of the bony bridge formed in the cleft defect in 20 patients with UCLP. Basic descriptive and principal component analysis was used to extract the various sub-components of the scale. Spearman's correlation was used to check the validity of the scale, and intra-class coefficient (ICC) and Cronbach's α were calculated to establish the reliability and retest applicability of the scale. Each CBCT scan was assessed in five areas: cementoenamel junction (CEJ), root apex, root midpoint, 3 and 6 mm below CEJ, and tabulated in percentiles of 20, 25, 40, 50, 60, and 75 for all the parameters (bone volume, density, and width). These scores were validated when correlated to the scale given by Kamperos et al. Cronbach's α for the domains demonstrated acceptable to excellent internal consistency. The ICC showed good test-retest reliability having a range of scores from 0.89 to 0.94. The proposed scale for the 3D assessment of SABG in patients with UCLP provides gradation for the objective assessment of the bony bridge. This gradation enables the qualitative and quantitative assessments of the bony bridge, thus allowing each clinician to judge SABG more conclusively.
我们研究的目的是为使用锥形束计算机断层扫描（CBCT）对单侧唇腭裂（UCLP）患者的二次牙槽骨植骨（SABG）进行三维（3D）定性和定量评估得出一个客观评估量表。 回顾了20例UCLP患者SABG术前和术后3个月的CBCT扫描，以评估腭裂缺损处形成的骨桥的骨体积、高度、宽度和密度。使用基本描述性分析和主成分分析来提取量表的各个子成分。采用Spearman相关性分析来检验量表的有效性，并计算组内系数（ICC）和Cronbach's α来确定量表的可靠性和重测适用性。 每次CBCT扫描在五个区域进行评估：牙骨质釉质界（CEJ）、根尖、牙根中点、CEJ下方3和6毫米处，并将所有参数（骨体积、密度和宽度）以20、25、40、50、60和75百分位数列表。当这些分数与Kamperos等人给出的量表相关时，得到了验证。各领域的Cronbach's α显示出可接受至优秀的内部一致性。ICC显示出良好的重测可靠性，分数范围为0.89至0.94。 所提出的用于UCLP患者SABG三维评估的量表为骨桥的客观评估提供了分级。这种分级能够对骨桥进行定性和定量评估，从而使每位临床医生能够更确凿地判断SABG情况。
