scholarly journals A Comparative Evaluation of Effect of Upper Lip Length, Age and Sex on Amount of Exposure of Maxillary Anterior Teeth

2011 ◽  
Vol 12 (1) ◽  
pp. 24-29 ◽  
Author(s):  
Paranjay Prajapati ◽  
Rajesh Sethuraman ◽  
YG Naveen
Keyword(s):  
Comparative Evaluation ◽  
Age Group ◽  
Central Incisor ◽  
Upper Lip ◽  
Maxillary Central Incisor ◽  
Anterior Teeth ◽  
Relationship Of ◽  
The Relationship ◽  
Male Subjects ◽  
Age And Sex

ABSTRACT Aim The aim was to evaluate the relationship of age, sex and lip length to the amount of exposure of maxillary incisors and canine teeth. Materials and methods Two-hundred subjects were enrolled in the study. All subjects were grouped according to the lip length and age. The exposure of maxillary central incisor and canines was measured with flexible millimeter ruler. Teeth exposure beyond the lower border of the upper lip was considered as positive exposure and the unexposed teeth were considered as negative exposure. Result In females of age group 20 to 29, 30 to 39, 40 to 49 and 50 to 59 years, the mean exposure of central incisor was 2.16, 2.1, 2.18 mm and that of canine was 0.04, −0.36, −0.44 mm. For male of age group 20 to 29, 30 to 39, 40 to 49 and 50 to 59 years exposed 2.04, 2.04, 1.84, 1.76 mm of central incisor respectively and 0.08, −0.52, −0.4 and −0.4 mm exposure of canine. Female subjects with lip length 10 to 15, 15 to 20, 21 to 25, 25 to 30 and 31 to 35 mm showed 3.7, 3.4, 2.3, 0.9, 0.25 mm exposure of central incisor and 0.35, −0.15, −0.7, −0.8, −0.6 mm exposure of canine, respectively. Male subjects exposed 3.4, 3.3, 2.05, 0.7, 0.15 mm of central incisor and 0.4, 0.3, −0.6, −0.95, −0.7 mm of canine respective to lip length. Conclusion The range of exposure of maxillary central incisors was wider than that of canine. The average dimensions for maxillary canines relating to age and sex were closer to the extremes of the range. The canine position relative to the maxillary lip appeared to be a more predictable determinant. Clinical significance The result of the study can be used as a reference according to the age, sex and the lip length of the patient to correctly place maxillary anterior teeth in prosthesis. How to cite this article Patel JR, Prajapati P, Sethuraman R YG N. A Comparative Evaluation of Effect of Upper Lip Length Age and Sex on Amount of Exposure of Maxillary Anterior Teeth. J Contemp Dent Pract 2011;12(1):24-29.

scholarly journals Maxillary and Mandibular Dentoalveolar Heights of French-Canadians 10 to 15 Years of Age

2008 ◽  
Vol 78 (1) ◽  
pp. 70-76 ◽  
Author(s):  
Peter H. Buschang ◽  
Roberto Carrillo ◽  
Sean S. Liu ◽  
Arto Demirjian
Keyword(s):  
Reference Data ◽  
Age Groups ◽  
Specific Reference ◽  
Central Incisor ◽  
French Canadian ◽  
French Canadians ◽  
Maxillary Central Incisor ◽  
Coefficients Of Variation ◽  
Male Subjects ◽  
Age And Sex

Abstract Objective: To establish reference data for anterior and posterior dentoalveolar heights of growing French-Canadians with untreated normal occlusions and malocclusions. Materials and Methods: The mixed longitudinal sample includes 227 French-Canadians, 119 male and 108 female, with cephalograms taken annually between 10–15 years of age. Maxillary and mandibular dentoalveolar heights were measured as the perpendicular distances of the incisor tips and first molar mesial cusp tips to the palatal (ANS-PNS) and mandibular (Go-Me) planes. Results: Male dentoalveolar heights were significantly (P < .05) greater than female heights at all ages. Dentoalveolar heights at 15 years of age were significantly larger (P < .05) than at 10 years of age, with differences ranging from 2.1–4.2 mm in male subjects and from 2.1–3.8 mm in female subjects. The greatest difference in dentoalveolar heights between the 10- and 15-year-old age groups was for the maxillary first molar; the maxillary central incisor height showed the smallest age effects. The coefficients of variation were greater for the maxillary than the mandibular dentoalveolar heights. Correlations of dentoalveolar heights within jaws ranged from 0.53 to 0.82; correlations between jaws ranged from 0.30 to 0.44. The mandibular heights showed the strongest associations. Conclusions: French-Canadian adolescents require age- and sex-specific reference data for dentoalveolar heights.

Analysis of Maximum Expiratory Flow Volume Curves Using Canonical Correlation Analysis

1985 ◽  
Vol 24 (02) ◽  
pp. 91-100 ◽  
Author(s):  
W. van Pelt ◽  
Ph. H. Quanjer ◽  
M. E. Wise ◽  
E. van der Burg ◽  
R. van der Lende
Keyword(s):  
Correlation Analysis ◽  
Canonical Correlation Analysis ◽  
Canonical Correlation ◽  
Flow Volume ◽  
Non Linear ◽  
Maximum Expiratory Flow ◽  
Expiratory Flow ◽  
Relationship Of ◽  
The Relationship ◽  
Age And Sex

SummaryAs part of a population study on chronic lung disease in the Netherlands, an investigation is made of the relationship of both age and sex with indices describing the maximum expiratory flow-volume (MEFV) curve. To determine the relationship, non-linear canonical correlation was used as realized in the computer program CANALS, a combination of ordinary canonical correlation analysis (CCA) and non-linear transformations of the variables. This method enhances the generality of the relationship to be found and has the advantage of showing the relative importance of categories or ranges within a variable with respect to that relationship. The above is exemplified by describing the relationship of age and sex with variables concerning respiratory symptoms and smoking habits. The analysis of age and sex with MEFV curve indices shows that non-linear canonical correlation analysis is an efficient tool in analysing size and shape of the MEFV curve and can be used to derive parameters concerning the whole curve.

scholarly journals A Clinical Study to Correlate the Facial Form and Maxillary Central Incisor Tooth Form in Males and Females of Davangere Population

2016 ◽  
Vol 04 (03) ◽  
pp. 156-164
Author(s):  
Deepak Bansal ◽  
Shruti Sharma ◽  
Manjit Kumar ◽  
Amrit Khosla
Keyword(s):  
Facial Appearance ◽  
Central Incisor ◽  
Incisor Tooth ◽  
Maxillary Central Incisor ◽  
Anterior Teeth ◽  
The Face ◽  
Tooth Form ◽  
Males And Females ◽  
Selection Of ◽  
Made In

AbstractAn altered facial appearance is more difficult to face, than problems related to ill-fitting denture or eating. The selection of maxillary anterior teeth for complete denture has long posed problem in clinical practice and a controversy about the best method to employ still exists. An attempt is made in the present study to clinically correlate the face form with maxillary central incisor tooth form in males and females of Davangere population. In 1914, Leon William's projected the “the form method” where he classified facial forms as square, tapering, and ovoid. Maxillary central incisors were selected according to the facial forms.Of total 100 subjects four different tooth forms and face forms were evaluated. They are: square, ovoid, square-tapered, tapered. No significant correlation existed between face form in male and females. Females exhibited greater correlation between face forms and inverted tooth form but that correlation is not sufficient to serve as a guide for selection of anterior teeth.

scholarly journals Esthetic Rehabilitation of a Fractured Permanent Maxillary Central Incisor by Reattachment

2016 ◽  
Vol 6 (1) ◽  
pp. 52-56
Keyword(s):  
Case Report ◽  
Surface Texture ◽  
Simple Procedure ◽  
Dental Trauma ◽  
Central Incisor ◽  
Fiber Post ◽  
Root Fracture ◽  
Maxillary Central Incisor ◽  
Crown Root ◽  
Anterior Teeth

ABSTRACT Crown fractures of the anterior teeth are a common form of dental trauma mainly affecting children and adolescents. One of the options for managing crown fractures is the reattachment of the fractured fragment when the tooth fragment is available with minimal or no violation of the biological width. Reattachment of fractured fragments can provide good esthetics, as it maintains the tooth's original anatomic form, color, and surface texture. It also restores function and is a relatively simple procedure. This case report deals with the esthetic management of a crown-root fracture that was successfully treated with endodontic treatment followed by reattachment of fractured fragment with fiber post. How to cite this article Shaikh SAH, Shenoy VU, Sumanthini MV, Pawar RB. Esthetic Rehabilitation of a Fractured Permanent Maxillary Central Incisor by Reattachment. J Contemp Dent 2016;6(1):52-56.

scholarly journals Anterior teeth selection in edentulous patients and its relationship with interhamular distance, maxillary arch width and maxillary central incisors: A study in North East Indian Population

2021 ◽  
Vol 9 (2) ◽  
pp. 63-66
Author(s):  
Brij Kumar ◽  
Nilotpol Kashyap ◽  
Khushnud Alam ◽  
Pabitra Mandal ◽  
Swargajyoti Das ◽  
...  
Keyword(s):  
Indian Population ◽  
Correct Selection ◽  
Central Incisor ◽  
Maxillary Central Incisor ◽  
East Indian ◽  
Arch Width ◽  
North East ◽  
The North ◽  
Anterior Teeth ◽  
Maxillary Arch

: 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 North-East Indian population.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.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. 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.

Victimization in Old Age

1974 ◽  
Vol 20 (3) ◽  
pp. 245-250 ◽  
Author(s):  
Jaber F. Gubrium
Keyword(s):  
Old Age ◽  
Elderly Persons ◽  
Age Group ◽  
Popular Belief ◽  
Victims Of Crime ◽  
Relationship Of ◽  
The Relationship

According to popular belief, aged persons as a group are greater victims of crime than those in any other age group, but available data from a variety of surveys show that the aged, in fact, are among the least victimized. Statistics on factors making for dif ferential victimization among elderly persons are described. Special attention is given to the possible impact of housing "protectiveness" and age-concentration on victimization, concern about crime, and fear. Three hypotheses on the relationship of these factors are discussed.

scholarly journals Permanent maxillary central incisor and first molar rotations in the mixed dentition in repaired complete unilateral cleft lip and palate and their relationship with absence of teeth in their vicinity

2018 ◽  
Vol 88 (5) ◽  
pp. 567-574
Author(s):  
Sunjay Suri ◽  
Suteeta Disthaporn ◽  
Bruce Ross ◽  
Bryan Tompson ◽  
Diogenes Baena ◽  
...  
Keyword(s):  
Bone Grafting ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Alveolar Bone ◽  
Permanent Tooth ◽  
Mixed Dentition ◽  
Central Incisor ◽  
Maxillary Central Incisor ◽  
Anterior Teeth ◽  
Alveolar Bone Grafting

ABSTRACT Objectives: To describe qualitatively and quantitatively the directions and magnitudes of rotations of permanent maxillary central incisors and first molars in the mixed dentition in repaired complete unilateral cleft lip and palate (UCLP) and study their associations with absence of teeth in their vicinity. Materials and Methods: Dental casts and orthodontic records taken prior to orthodontic preparation for alveolar bone grafting of 74 children with repaired UCLP (53 male, 21 female; aged 8.9 ± 1.0 years) were studied. Directions and magnitudes of permanent maxillary central incisor and first molar rotations were recorded. Tooth absence was confirmed from longitudinal radiographic records. Incisor and molar rotations were analyzed in relation to the absence of teeth in their vicinity. Results: Distolabial rotation of the permanent maxillary central incisor was noted in 77.14% on the cleft side, while distopalatal rotation was noted in 82.19% on the noncleft side. Incisor rotation was greater when a permanent tooth was present distal to the cleft side central incisor, in the greater segment. The permanent maxillary first molar showed mesiopalatal rotation, which was greater on the cleft side and when there was absence of one or more teeth in the buccal segment. Conclusions: Presence and absence of teeth were associated with the severity of incisor and molar rotations in UCLP. Crowding of anterior teeth in the greater segment was associated with a greater magnitude of rotation of the cleft side permanent central incisor. Absence of one or more buccal segment teeth was associated with greater magnitude of rotation of the molar.

Sign in / Sign up

Export Citation Format

Share Document