Mandibular Lingual Concavity: A Cross-sectional Analysis using Cone Beam Computed Tomography
Journal Title: Journal of Clinical and Diagnostic Research - Year 2018, Vol 12, Issue 10
Abstract
ABSTRACT Introduction: Cross-sectional analysis using Cone Beam Computed Tomography (CBCT) is appropriate for assessment of lingual undercuts and prevention of lingual cortex perforation and subsequent complications. Aim: This study aimed to assess the mandibular lingual undercut in the first molar site on CBCT scans to prevent lingual cortex perforation during implant insertion. Materials and Methods: This cross-sectional study was conducted on 164 CBCT scans (77 males and 87 females with a mean age of 43.9±12.3 years). The following information was collected: Type of ridge morphology (U: lingual undercut, C: convex, P: parallel), ridge width, ridge height, the angle between the lingual surface and the line drawn above the canal, distance between the deepest point in the lingual surface and the line drawn perpendicular to the lingual surface, distance between the most prominent point of the lingual surface and the ridge crest and distance between the most prominent point in the lingual surface and the inferior border of the mandible. Analysis of variance and t-test were used to compare mean values of CBCT measurements between gender and age groups. Results: Type U (50%) was the most common type followed by type C (26.2%) and type P (23.8%). No significant correlation was noted between age and depth of lingual undercut or type of ridge morphology or between ridge morphology and gender (p>0.05). Ridge height (p=0.002) and distance between the most prominent point of the ridge and the ridge crest (p=0.021) were significantly greater in males than in females. Conclusion: Type U ridge morphology had the highest prevalence. Mandibular lingual concavity must be taken into account during implant placement to prevent accidental perforation of lingual plate.
Authors and Affiliations
Fatemeh Salemi, Abbas Shokri, Maryam Foroozandeh, Manoochehr Karami, Zahra Khalili
Keywords
Related Articles
- EP ID EP529851
- DOI 10.7860/JCDR/2018/35850.12190
- Views 88
- Downloads 0
A Rare Case of Giant Solitary Neurofibroma of Abdominal Wall Masked by Pregnancy
Various types of neurogenic tumours can involve the abdomen. Retroperitonial space is most commonly affected but other sites can also be involved. Mostly younger age group is affected and malignant transformation is rare...
Anaemia in CD5 Negative Chronic Lymphoproliferative Disorder: Importance of Bone Marrow Examination
Letter to Editor
Insight into the Possible Association between Gene Polymorphism of IFN-γ and IL-22 with Psoriasis in Punjab, India
ABSTRACT Introduction: IFN-γ and IL-22 are Th1/Th17 cytokine which have been shown to play important role in the development of autoimmune disorder like psoriasis. Aim: To identify the possible association of IFN-γ and...
Role of Vitamin D in the Outcome of Ischemic Stroke- A Randomized Controlled Trial
Introduction: Vitamin D deficiency has reached epidemic proportions in India with prevalence rates of 70-100% in the general population. Low vitamin D levels are associated with worse outcomes in ischemic strokes. The ou...
Estimation of Total Length of Femur from its Proximal and Distal Segmental Measurements of Disarticulated Femur Bones of Nepalese Population using Regression Equation Method
Introduction: Length of long bones is taken as an important contributor for estimating one of the four elements of forensic anthropology i.e., stature of the individual. Since physical characteristics of the individual d...