Maxillary Anterior Teeth and Facial Index Parameters in Correlation with Recurring Esthetic Dental Proportion

Completed

• Conditions: There is No Disease the Study Focus on Facial Index in Relation to RED

• Registration Number: NCT06812468
• Lead Sponsor: Al-Azhar University

Brief Summary

The goal of this cross-sectional study is to state the inter relation between anthropometric parameters of pristine maxillary anterior teeth and facial index and their correlation with recurring esthetic dental proportion (RED) using 3D digital software (Medit) with intra intraoral scanner.The study comprised of 20 adult out patients with an equal number of males and females who had 20-35 years old.

Detailed Description

The research focuses on analyzing the proportions of maxillary anterior teeth in relation to facial measurements, particularly within the Egyptian population. It evaluates how closely these dimensions align with the Recurring Esthetic Dental (RED) proportions, which suggest that the width of anterior teeth should decrease by a constant ratio moving distally. Using advanced digital tools such as the BELLUS 3D face scanner and MEDIT i700 intraoral scanner, the study collected detailed facial and dental measurements from participants to explore the correlation between facial index and tooth dimensions. The sample consisted of 20 participants (10 males and 10 females), with data analyzed using statistical methods to assess symmetry and gender variations in these proportions.). Moreover the results were statistically analyzed using the Independent t-test or an equivalent non-parametric test was used for comparison between the two groups, and the Pearson's correlation coefficient (r) test was used for correlating different parameters.

Study Timeline

• Study Start: 2022-09-24
• Primary Completion: 2022-09-24
• Study Completion: 2022-09-24
• Status Verified: 2025-02
• Study First Submitted: 2025-02-02
• Study First Submitted QC: 2025-02-05
• Study First Posted: 2025-02-06
• Last Update Submitted: 2025-02-19
• Last Update Posted: 2025-02-21

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

1. must be in the same age group (20-35). 2. free of systemically disease (GI, D.M., gastric influx). 3. Free of facial asymmetry. 4. Free of facial trauma or surgeries. 6.Normal Class 1 occlusion. 7. Free from any tooth wear disorder. 8.periodontally healthy without any previous orthodontic treatment. 9. Maxillary anterior teeth free from restoration

Exclusion Criteria

1. History of surgery in the anterior maxillary or mandibular region. 2. Restorations in anterior sextant. 3 pregnant or lactating females. 4. gingival hyperplasia. 5. orthodontic treatment. 6. Facial asymmetry and clefts 7.Smokers patient

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
parameters of pristine maxillary anterior teeth and facial index in correlation with recurring esthetic dental proportion (RED)	20 years old to 35years old	Assessment of facial index and facial forms:the morphological face height (n-gn) was measured as the distance between the nasal root (n: nasion) and the lowest point of the lower border of mandible in the mid-sagittal plane, (gn: gnathion), while the maximum facial width was considered as bizygomatic width (zy-zy)which was measured from the left zygion to the right zygion.All measurements were performed by a 3D face scanning software (BELLUS 3D). the overall facial form was calculated according to the formula FI = FW / FH× 100. Assessment of Maxillary Anterior Teeth Dimensions:The dimensions of Maxillary anterior teeth were measured for each case as: width and length of central, lateral and canines, in both right and left segments and inter canine distance. All dimensions were measured using scans which were taken by MEDIT i700 intraoral scanner.Correlating the results with RED proportion :The formula for determining the ideal width of the central incisor is:CIW =ICW/2 (1+RED+RED2).

Trial Locations

Locations (2)

faculty of dentistry, Al azhar University for girls; 🇪🇬 Nasr city, Cairo, Egypt

Al Azhar University; 🇪🇬 Cairo, Egypt