Evaluation of Co-Relation between Philtral Width and Maxillary Central Incisors Width (original) (raw)
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World Journal of Dentistry
Introduction: Various anthropometric measurements have been used to determine the size of maxillary anterior teeth. However, which anthropometric measurement is the most reliable indicator to determine the width of maxillary anterior teeth remains unclear. Aims and objectives: To evaluate which anthropometric measurement is the most reliable indicator in determining the width of maxillary anterior teeth. Materials and methods: An electronic search was conducted for scholarly articles discussing various anthropometric measurements used for determination of width of maxillary anterior teeth, written in English or translated into English listed with PubMed, Cochrane Library, ScienceDirect, Wiley Online Library, and Google scholar databases. The search strategy yielded 119 articles. Out of them, 70 were excluded following reading of abstract, and 49 were selected for full-text reading. Of these, 21 were excluded based on exclusion criteria. Finally, 28 articles were included for final search. Due to heterogenicity of studies, a meta-analysis was not performed. Results: High degree of correlation was seen between interalar width (IAD), interpupillary distance (IPD), bizygomatic width (BW), and width of maxillary anterior teeth, in Indian population, whereas in Saudi population, intercanthal distance (ICD) has high degree of correlation to the width of maxillary anterior teeth, and in Brazilian (mulatto and blacks) population, high degree of correlation was seen between intercommissural width (ICOW) and width of maxillary anterior teeth. Conclusion: The anthropometric measurement used depends on the population group in which it is being used. There is no single anthropometric measurement that can be used to determine the width of maxillary anterior teeth. Hence, more studies with large sample size and different population groups need to be conducted. Clinical significance: In Indian population, high degree of correlation was seen between IAD, IPD, BW, and width of maxillary anterior teeth. The results of the previous study should be validated by including a large population size spread over entire Indian subcontinent. This would also help to generate multiplication factor for various anthropological measurements for use limited to the Indian population.
Journal of Oral Hygiene & Health, 2013
Introduction: The maxillary central incisor in particular holds the key in creating a highly esthetic frontal profile and therefore appropriate selection of the tooth is of utmost importance in the restoration of the anterior segment of teeth in completely or partially edentulous patients. Although a number of studies have suggested various reference guides towards estimation of the width of central incisor, there have been no suitable guides to ascertain the length of the incisor in the absence of pre-extraction records. Purpose of the study: The present study attempted to arrive at a correct proportion for determining as far as possible the correct length of the maxillary central incisor with the help of facial measurements in the absence of pre-extraction records in a small proportion of the subcontinent Indian population. Materials and methods: The distance from the bridge of the nose to the base was compared to the length (actual and calculated by regression) of the maxillary central incisor in 400 patients of both sexes between the age groups of 20-35 years. Results: The length of the maxillary central incisor by calculated measurement ratios of facial measurements and regression equation showed variations between 0.2 to 0.4 mm in males and females respectively which was statistically significant (p<0.01). Conclusion: The distance from the bridge of the nose to base of the nose may be used as a reference to estimate the length of the central incisor in the subcontinent Indian population, although regression equation may be more accurate.
IOSR Journals , 2019
Objective: The objective of this study is to assess the morphological variation of maxillary lateral incisor among the North and South Indian population. Methods: 50 casts each from North and South Indian population was taken and mesiodistal width of maxillary lateral incisor measured with Vernier calliper of pitch 0.001 cm. Results: Based on the findings it was clear that there was no significant variation in maxillary lateral incisor among the North and South Indian population. Conclusion: a distinct morphological variability was not noted among the North and South Indian population, which may be due to less number of samples taken. The study should be done by taking large number of study samples to evaluate the significant variations.
The selection of appropriate size of artificial teeth takes an important place in designing complete denture prosthesis. However, the standards or proportions commonly used as a guide have been developed mainly on Caucasian populations. Objectives: To investigate the relationship between intercanthal distance and two variables i.e. mesiodistal width of central incisors and combined width of six maxillary anterior teeth size in Kashmiri population. Materials and methods: This is a descriptive cross sectional study conducted on 200 subjects, (100 males -100 females), from Kashmiri population. The age range was from 18-55 years. The intercanthal distance was measured as the distance between the medial (inner) angles of the palpabral fissure. Mesiodistal width of the maxillary central incisors and combined width of six maxillary anterior teeth were recorded. An electronic digital caliper (Narex -Czechoslovakia), was used for all measurements. Data were analyzed using Person chi-square test. Results: For the sample population the ratio was 1:0.268 for the central incisors and 1:1.395 for six anterior teeth. Mean intercanthal distance was found to be 31.67. Conclusion: These results could be used as a helpful guide for initial selection of anterior teeth width in the Kashmiri population.
The Relationship Between Widths of Upper Anterior Teeth and Facial Widths
2016
The scope of the study was to determine the ratio between maxillary anterior teeth widths to width of facial proportions in a dental college in Karachi, Pakistan. The widths of facial proportions were determined using a Vernier Caliper. The widths of maxillary anterior teeth were measured intraorally using Boley’s gauge on a sample of 116 human subjects visiting the Diagnosis Department in Dr Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, (DIKIOHS), Dow University of Health Sciences, Karachi, Pakistan. All readings were measured in millimeters. Pearson’s correlation test was applied and it showed no significant relation between width of central incisor and bizygomatic width (0.11). But a significant relationship was found between intercanine width and width of mouth (0.03), width of philtrum and mean width of central incisors (p=0.05), interalar width and intercanine width (p=0.00). Facial proportions solely do not provide a secure prototype in selecting maxillary anterior t...
Relation of Maxillary Central Incisors Width to Some Facial Measurements
Journal of Oral and Dental Research, 2017
Background Using the extraoral indicators is a common method to determine the size and shape of the artificial teeth. Aim This study was conducted to assess the relationship between the mesiodistal width of maxillary central incisors and some facial anatomical landmarks (Bizygomatic and Inter-canthal distance). Materials and Methods A prospective cross-sectional study was conducted on 160 adult students, with the age range between 18-25. Mesiodistal widths of maxillary central incisors and two facial widths (bizygomatic and inter-canthal) were marked and measured by digital caliper to the nearest of 0.01mm. Data were analyzed statistically using SPSS (V-18) software. Results The statistical Analysis demonstrated the correlation of the mesiodistal width of a right central incisor with bizygomatic and inner-canthal widths was significant at P-Value of (P< 0.05), Spearman›s correlation of bizygomatic for male was 0.358 and female was 0.305, and the spearman›s correlation of intercanthal for male was 0.318 and female was 0.312. In the male, the correlation of the mesiodistal width of a left central incisor with bizygomatic and intercanthal widths was weak; Spearman›s correlation was 0.043 for bizygomatic and was 0.123 for intercanthal. While for female, it showed a strong correlation, spearman›s correlation was 0.349 for bizygomatic and was 0.298 for intercanthal. Conclusion The results proposed that the inter-canthal and bizygomatic widths are both good prognostic factor in determining the mesiodistal width of the maxillary right central incisor. Also concluded that the correlation between maxillary central incisor width and bizygomatic and inter-canthal widths could be differed by gender.
Journal of Indian Prosthodontic Society, 2012
The purpose of the study was to determine the mesiodistal width of six anterior teeth for better esthetics and good tooth arrangement in a cross section of Rajasthan population. The mesiodistal dimension of central, lateral incisor and canine on right and left sides was measured in 250 males and 250 females, these readings were used to determine the mean, minimum and maximum maxillary/mandibular teeth 'anterior ratio', difference in mesiodistal width, combined mean mesiodistal width, the number and percent of similar teeth of maxilla and mandible. It was observed from the present study that there is variation in mesiodistal width in right and left sides signifying that the anterior teeth are not mirror images of one another. Male subjects have greater mesiodistal width than female subjects and right side dominates in most of the readings indicating that mesiodistal width is greater on right side than on left side. Percentage variability and sexual dimorphism are also importa...
Journal of Dental Specialities, 2021
In prosthodontics, esthetics a combination of the art and science. Patients requiring complete dentures usually expect comfort first, followed by harmonious appearance, and lastly efficiency. Therefore, the correct selection of the artificial teeth is essential for achieving a pleasant esthetic outcome. A number of soft tissue landmarks have been purported as useful for anterior tooth selection; but these are easily affected by several factors such as aging and the weight and build of the person. In the present study hard tissue landmarks like pterygomaxillary notches and maxillary arch width was presented as alternative anatomical landmark for anterior teeth selection. The aim of the study was to evaluate the hamular width and inter maxillary arch width which could be the guide for the selection ofartificial teeth for complete maxillary denture in the NorthEast Indian population. Materials and Methods: The study was conducted on 100 dentate individuals from the North Eastern Indian population, between the age group of 18-30 years. All measurements were done with digital calliper on cast obtained after impression with irreversible hydrocolloid impression material. Result : Pearson correlation analysis showed, statistically significant correlation between maxillary archwidth and central incisor width. The result was significant at p<0.05 but not high enough to be practically used. Correlation between hamular width and central incisor width was found to be insignificant. The value of R was 0.05435. The result was significant at p < 0.05. Conclusion: The maxillary arch width was in direct proportion to the maxillary central incisor width which meant that the increase of maxillary arch width,there was a corresponding increase of maxillary central incisor width. Significant correlation was found between maxillary arch width and central incisor width with p value=0132. The result was significant at p<0.05 but not high enough to be practically used. But In this study statistically insignificant correlation was found between hamular width and central incisor width. This is an Open Access (OA) journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.
Background and Aim: Esthetics is one of the important treatment goals in prosthetic dentistry. Appropriate selection of anterior teeth with respect to size and shape plays an important role in achieving optimal esthetic outcomes. Using the extraoral indicators is a common method to determine the size of the teeth. In this study, the correlation between the facial widths (in bizygomatic and intercondylar areas) and the mesiodistal width of maxillary central incisors was analyzed. Materials and Methods:A cross-sectional study was conducted on 100 qualified students, 50 females and 50 males. Two facial widths comprising Intercondylar width -distance between two approximately Beyron hinge axis-and bizygomatic width -two most convex points of zygomatic arch-were marked and measured by a facebow and a digital caliper. Mesiodistal maxillary central incisors' widths were measured by a digital caliper. The collected data were analyzed via Pearson correlation coefficient. Results: The mesiodistal width of right central incisor was 8.47±0.56. The mesiodistal width of left central incisor was 8.54±0.64.The bizygomatic width was 126.15±6.74. The intercondylar width was 131.43±5.41. There was no correlation between bizygomatic width and central incisors (P>0.05) and a weak correlation between intercondylar width and central incisors in Iranian community. Conclusion: Facial width is not recommended as a suitable landmark for estimating the mesiodistal width of maxillary central incisors.