Optimal sites for mini‐implant insertion in the lingual or palatal alveolar cortical bone as assessed by cone beam computed tomography in South Indian population

Abstract

ObjectivesTo determine the optimal sites of mini‐implant placement in the palatal alveolar cortical bone by using cone beam computed tomography (CBCT).Subjects and MethodsCone beam computed tomography records of 60 patients were divided into two groups of equal sizes, based on age and sex. The images were analysed using Planmeca Romexis Software (Version 4.1.2). The measurements were made in axial sections of the maxilla and mandible, at 2, 4 and 6 mm from the CEJ. The optimal sites were defined in terms of (a) Palatal or lingual alveolar cortical bone thickness and (b) Mesiodistal palatal or lingual inter‐radicular width.ResultsThe optimal site for mini‐implant insertion, anteriorly, was the canine‐lateral incisor embrasure in both the jaws. Posteriorly, the inter‐molar embrasure in the mandible and the molar‐premolar embrasure in the maxilla were optimal sites. Females demonstrated significantly lesser bone widths in all areas of the maxilla (P < .05) but greater bone thickness in the mandibular regions, as compared to males. The adolescent age group demonstrated a significantly lesser bone thickness but greater mesiodistal widths than the adult population in both the jaws (P < .05).ConclusionThe optimal sites for mini‐implant insertion were the anterior canine‐lateral incisor and posterior buccal inter‐radicular embrasures, in both the jaws. Significant differences existed between age and gender groups, which need to be kept in mind while choosing the locations for placing mini‐implants.

Guided Insertion of Temporary Anchorage Device in Form of Orthodontic Titanium Miniscrews with Customized 3D Templates—A Systematic Review with Meta-Analysis of Clinical Studies

“…Numerous studies that use CBCT to assess bone amount and quality as well as root proximity in terms of placing orthodontic mini-implants for temporary anchorage [36,48,49] have been published in recent years. An assessment of the conditions at the planned surgical site is crucial.…”

Quantitative Assessment of Posterior Maxillary Arch for Orthodontic Miniscrew Insertion Using Cone Beam Computed Tomography: A Cross-Sectional Analysis

“…According to the results of a previous studies [ 11 , 17 ], the sample size was calculated to be 70 posterior sextant, using the following formula ( z = 1.96, d = 0.25, SD = 1.09): …”

“…Various studies have mentioned complications in applications of miniscrews [ 6 , 10 , 11 ]. Lack of initial stability in the bone is one of the main reasons for miniscrew failures.…”

Quantitative Assessment of Posterior Maxillary Arch for Orthodontic Mini-screw Insertion Using Cone Beam Computed Tomography- a Cross Sectional Analysis

“…According to the results of a previous studies (11,16), the sample size was calculated to be 70 CBCT scans, using the following formula: (z=1.96, d = 0.25, SD=1.09) Due to the retrospective nature of the study, the selection bias was an issue. To minimize the effect of selection bias, 700 CBCT scans were assessed for eligibility; out of which, 70 were selected according to the eligibility criteria.…”

“…Various studies have mentioned complications in applications of mini-screws (6,10,11). Lack of initial stability in bone is one of the main reasons for mini-screw failures.…”