scholarly journals Assessment of Age at the Stages of the Eruption of Third Molar Teeth among the People of North-Eastern India

2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Mahanta Putul ◽  
Ranjumoni Konwar ◽  
Malamoni Dutta ◽  
Bharati Basumatary ◽  
Madhab Chandra Rajbongshi ◽  
...  
Keyword(s):  
Tooth Development ◽  
Age Groups ◽  
Age Determination ◽  
Third Molar ◽  
Chronological Age ◽  
Chi Square ◽  
Cross Sectional ◽  
General Physical Examination ◽  
The Third ◽  
Third Molar Eruption

Background and Objectives. In the biological age determination of a person’s teeth at adolescence, the third molar (M3) or wisdom tooth development is considered a dependable method used over the years. The present research intended to evaluate the age from the eruption status of M3 and analyze and equivalence with a different quadrant of the jaws. Methods. A cross-sectional descriptive and analytical study was undertaken with 1060 Assamese individuals (642 males and 418 females) aged 14–26 years and was subjected to a clinical, dental, and general physical examination from January 2014 to December 2018. The data were statistically analyzed using Microsoft Excel and the Statistical Package for the Social Sciences (SPSS) version 22. The significant differences among variables were tested using the chi-square test and Student’s t -test, considering a p value < 0.05 as significant. Results. The carried-out research showed no eruption (NE) status of M3 with an overall mean (±SD) age at 17.39 (±2.273) years, although a significantly lower age among males with a mean age of 16.92 (±2.138) years ( p value < 0.001) was observed. The mean age (overall) for the complete eruption (CE) was observed at 20.33 (±2.566) years, which was seen earlier in males. The mandibular M3 appears earlier compared to the maxillary M3. The third molar eruption (TME) on both left and right quadrants of the jaw was observed substantially earlier in the lower jaw, compared to the upper jaw ( p value < 0.025). The earliest CE of M3 was marked at 15 years. The differences in the frequencies of TME in different chronological age groups were found significant ( p value < 0.001). A significant association between gender and TME ( p value < 0.045) in the current study is worth noting. Conclusion. Thus, determined by TME as a valid method, age can be used for various purposes to establish a person’s identity. Dental age estimated using third molar eruption status has a weighty association with chronological age. Thus, it should be utilized to determine the likely age of an individual.

scholarly journals Size of the lower third molar space in relation to age in Serbian population

2013 ◽  
Vol 70 (10) ◽  
pp. 923-928 ◽  
Author(s):  
Ksenija Zelic ◽  
Nenad Nedeljkovic
Keyword(s):  
Age Groups ◽  
Third Molar ◽  
Adult Patients ◽  
Width Ratio ◽  
Third Molars ◽  
Gonial Angle ◽  
Angle Size ◽  
The Third ◽  
Crown Width ◽  
Third Molar Eruption

Background/Aim. It is considered that the shortage of space is the major cause of the third molar impaction. The aim of this study was to establish the frequency of insufficient lower third molar eruption space in Serbian population, to question the differences in this frequency in the subjects of different age, to determine the influence of the lower third molar space (retromolar space) size on third molar eruption, and to investigate a possible correlation between the size of gonial angle and the space/third molar width ratio. Methods. Digital orthopantomograms were taken from 93 patients divided into two groups: early adult (16-18 years of age) and adult (18-26) patients. Retromolar space, mesiodistal third molar crown width, gonial angle and eruption levels were measured. Results. The space/third molar width in early adult subjects was smaller (p < 0.0001) and insufficient space was significantly more frequent (p = 0.0003) than in adult patients. Considerably more third molars erupted in case of enough space in both age groups (p < 0.0001). There was no difference between the means of gonial angle size in relations to the available space. Conclusions. The retromolar space/third molar width ratio is more favorable in adult subjects. Gonial angle is not in correlation with the retromolar space/third molar width ratio.

The influence of varying maxillary central incisor vertical dimension on perceived smile aesthetics

2019 ◽  
Vol 46 (2) ◽  
pp. 137-142
Author(s):  
Elis Janaina Lira dos Santos ◽  
Alana Moura Xavier Dantas ◽  
Raíssa Marçal Vilela ◽  
Karina Jerônimo Rodrigues Santiago de Lima ◽  
Rejane Targino Soares Beltrão
Keyword(s):  
Age Groups ◽  
Educational Background ◽  
Cross Sectional Study ◽  
Central Incisor ◽  
Chi Square ◽  
Cross Sectional ◽  
Exact Test ◽  
Maxillary Central Incisor ◽  
Significant Difference ◽  
Chi Square Test

Objective: To evaluate patient perception of the smile focused on analysis of the upper incisors. Design: Cross-sectional study. Setting: Department of Clinical and Social Dentistry at Federal University of Paraíba, João Pessoa, Brazil. Participants: The sample consisted of 135 individuals (73 women and 62 men). Methods: Images with different characteristics associated with the incisal edges were shown at random and analysed using a Likert scale. Data were analysed using the Chi-square test or Fisher’s exact test with a statistically significant difference ( P < 0.05). Results: Smile I (difference of 1.5 mm in relation to the central incisor and lateral) was considered the most aesthetic, while Smile III (no difference in height between the central and lateral incisors) was the least aesthetic. A significant difference was found between perception of smile II (difference of 1 mm in relation to the central incisor and lateral) and age groups ( P < 0.005), with 31% (n = 13) of individuals aged 45–64 years considering smile II as not pleasant, 4.4% (n = 2) aged 15–24 years and 8.3% (n=4) aged 25–44 years and 4.4% (n = 2) aged 15–24 years considering the same. A significant difference was also found in relation to educational background of the assessor and smile perception, with smile III ( P = 0.0441) and smile IV ( P = 0.0053) considered the most aesthetic ( P = 0.0116). Conclusion: The smile considered most attractive among the sample was that with 1.5 mm steepness between the central and lateral incisors, while a flat smile arc was considered least attractive.

scholarly journals Sensitivity and Specificity of Mandibular Third Molar Calcification at Chronological Age and Hand Wrist Maturation Stage to Discriminate Between Female and Male at Pubertal Growth Period

2021 ◽  
Vol 15 (1) ◽  
pp. 551-557
Author(s):  
Endah Mardiati ◽  
Ira Komara ◽  
Himawan Halim ◽  
Dikdik Kurnia ◽  
Ani Melani Maskoen
Keyword(s):  
Sensitivity And Specificity ◽  
Third Molar ◽  
Growth Period ◽  
Chronological Age ◽  
Maturation Stage ◽  
Cross Sectional ◽  
Pubertal Growth ◽  
Mandibular Third Molar ◽  
Significant Difference ◽  
Stage D

Background: The mandibular third molar is the last tooth that is not completely developed by the time pubertal growth has been finished. Maturation of the mandibular third molar is one of the physiological maturation indicators that can be used to determine the stage of pubertal growth. Objective: The aim of the study was to determine the sensitivity and specificity of mandibular third molar calcification at chronological age and hand wrist maturation stage to discriminate between female and male at pubertal growth period. Methods: It is a retrospective study with a cross-sectional approach using panoramic and hand-wrist digital radiographs of 279 females and 144 males, age 8-17 years, with a total of 423 panoramic radiographs and 423 hand-wrist radiographs. Statistical analysis was performed using Excel Mega Stat. ANOVA to analyze the differences between mandibular third molar calcification at chronological age and hand-wrist maturation stage, and t-test was used to analyze the differences between females and males. Spearman rank correlation was used for the analysis of the correlation between mandibular third molar calcification with chronological age and hand-wrist maturation stage; sensitivity and specificity were used to discriminate the pubertal growth period between mandibular third molar calcification and hand-wrist maturation stage. Results: There were significant differences found in mandibular third molar crown maturation stage B and C, but no significant difference was observed between mandibular third molar stage A, D, E, F, G and H, between females and males. The highest percentage of mandibular third molar crown formation in females was observed at stage D (6.68%) at MP3u, and in males, it was observed at stage D (8.83%) at SMI-4. The highest percentage of root formation in females was stage E (8.24%) at the SMI-10 stage, and males stage F (4.86%) at MP3u. The correlation was observed between mandibular third molar calcification with hand-wrist, females 0.22 and males 0.43, and chronological age 0.60 for females and 0.69 for males. The highest sensitivity of mandibular third molar calcification of 97.0% was observed in female at SMI-4 of hand-wrist maturation with specificity of 100%, while in male, a sensitivity of 94.5% was observed at SMI-2 stage with a specificity of 99.99%. Conclusion: There were significant differences found in mandibular third molar calcification between females and males except for stage B and stage C; weak correlation was observed between mandibular third molar calcification and hand-wrist, and moderate correlation was observed with chronological age. The sensitivity and specificity in females and males indicate that mandibular third molar calcification is only useful for diagnosing the pre-pubertal growth phase.

scholarly journals Assessment of role of mandibular third molar in lower anterior crowding among orthodontic patients of Kathmandu Nepal

2020 ◽  
Vol 10 (3) ◽  
pp. 21-26
Author(s):  
Bashu Dev Pant ◽  
Anjana Rajbhandari ◽  
Resina Pradhan ◽  
Manju Bajracharya ◽  
Surendra Maharjan ◽  
...  
Keyword(s):  
Third Molar ◽  
Cross Sectional Study ◽  
Third Molars ◽  
Chi Square ◽  
Cross Sectional ◽  
Anterior Crowding ◽  
Mandibular Third Molar ◽  
Significant Difference ◽  
Orthodontic Patients

Introduction: Crowding in mandibular arch increases with increasing age and etiology of crowding is multifactorial in nature. Role of mandibular third molar in lower anterior crowding remains a topic of controvery over a period of century. The objective of this study was to assess whether there is any correlation between presence of mandibular third molar position and lower anterior crowding. Materials and Method: On the basis of third molar position one hundred and six sample of pretreatment orthodontic patients aged between 17 to 38 years were divided into erupted, erupting and agenesis group. The study was conducted in Peoples Dental College and Hospital from January 2020 to March 2020 after obtaining ethical approval from the institutional review committee. This cross-sectional study was done on dental casts and orthopantomogram; brass wire was used for measuring arch length and digital vernier caliper for measuring tooth material with modified segmental arch analysis method. Result: Among 106 samples collected 55 (51.88%) were female and 51(48.11%) were male and the mean age was 21.53 ± 3.91 years, Chi square and ANOVA test was used for Statistical analysis. This study showed no statistically significant differences between third molar position and lower anterior crowding on right (P= 0.68) and left side (P = 0.45). The study also showed that association between the third molar position and lower anterior crowding is more on left side compared to right side. Conclusion: Mandibular third molars have not statistically significant difference in lower anterior crowding so, extraction of third molars for relieving the anterior crowding is not justifiable

scholarly journals Determinan pemberantasan sarang nyamuk pada ibu rumah tangga di Bogor

2016 ◽  
Vol 32 (6) ◽  
pp. 189
Author(s):  
Mayumi Nitami ◽  
Sri Tjahyani Budiutami
Keyword(s):  
Age Groups ◽  
Cross Sectional Study ◽  
Influential Factor ◽  
Sectional Study ◽  
Chi Square ◽  
Cross Sectional ◽  
Job Knowledge ◽  
Control And Prevention ◽  
Dengue Control ◽  
Prevention Counseling

Determinants of dengue mosquito eradication (PSN) in the households in Bogor in 2016PurposeThis study aimed to determine the factors that affect of PSN on housewives in Cibinong and the factors found that influence were: job, knowledge, attitude, behavior of housewife, counselling, active jumantik, giving abatement and the number of container.MethodsA cross-sectional study was conducted using 125 housewifes in Cibinong sub-district. The statistical analysis used chi-square and multiple logistic regression tests.ResultsThis study showed that counseling and the existence of jumantik cadre were the determinants of the application of mosquito nest eradication. Counseling was the most influential factor on the application of mosquito nest eradication.Conclusion Dengue control and prevention counseling should be given to all age groups in the community regularly and it is recommended to reactivate jumantik cadres.

scholarly journals A Retrospective study on the dynamics of the clinical and Demographical evolution of Cutaneous Leishmaniasis in the Yazd province, Iran

2020 ◽  
Vol 3 (3) ◽  
pp. 80-83
Author(s):  
Ali Fattahi Bafghi ◽  
◽  
Elham Rezaee ◽  
Keyword(s):  
Cutaneous Leishmaniasis ◽  
Epidemiological Study ◽  
Age Groups ◽  
Epidemiological Data ◽  
Educational Status ◽  
Cross Sectional Study ◽  
Personal Hygiene ◽  
Chi Square ◽  
Cross Sectional ◽  
The Past

Leishmaniasis is considered as an important health problem in the world. Cutaneous Leishmaniasis is epidemic in all of places of Iran, this disease begins as small swells and then they gradually grow and turn into wounds. Since the epidemiological study of this problem is effective in preventing and controlling it. The current research was conducted to study the epidemiological study of Cutaneous Leishmaniasis in Yazd province during the past 5(2014-2018) years. This cross-sectional study has been conducted on registered information and documents of the patients having problem in Yazd province remedial and health care centers over the past 5 years. First, the registered demographic and epidemiological data of the patients were extracted and then they were analyzed by using SPSS 18 software with chi-square test and descriptive statistics.897 patients included 457 males (51.06%) and 439 females (48.94%). The majority of the patients were between nine 20-29 years old and the minority of them were over the range of 5-9 years old. Most lesions were on the hand and leg of the patients. It was also found that there was a significant relationship between age groups and types of Leishmaniasis (P<0.05) as well as gender and type Leishmaniasis (P<0.05). According to our study, there has been an ascending trend in disease frequency in Yazd province from 2014 to 2018. This increase in diseases due to lack of health and educational status of the people-is also a lack of personal hygiene.

scholarly journals Radiographic assessment of lower third molar eruption in different anteroposterior skeletal patterns and age-related groups

2014 ◽  
Vol 85 (4) ◽  
pp. 577-584 ◽  
Author(s):  
Aleksandar Jakovljevic ◽  
Emira Lazic ◽  
Ivan Soldatovic ◽  
Nenad Nedeljkovic ◽  
Miroslav Andric
Keyword(s):  
Logistic Regression ◽  
Age Groups ◽  
Third Molar ◽  
Width Ratio ◽  
Class Iii ◽  
Second Molar ◽  
Age Related ◽  
Mandibular Third Molar ◽  
Lateral Cephalograms ◽  
Third Molar Eruption

ABSTRACT Objective:  To analyze radiographic predictors for lower third molar eruption among subjects with different anteroposterior skeletal relations and of different age groups. Materials and Methods:  In total, 300 lower third molars were recorded on diagnostic digital orthopantomograms (DPTs) and lateral cephalograms (LCs). The radiographs were grouped according to sagittal intermaxillary angle (ANB), subject age, and level of lower third molar eruption. The DPT was used to analyze retromolar space, mesiodistal crown width, space/width ratio, third and second molar angulation (α, γ), third molar inclination (β), and gonion angle. The LC was used to determine ANB, angles of maxillar and mandibular prognathism (SNA, SNB), mandibular plane angle (SN/MP), and mandibular lengths. A logistic regression model was created using the statistically significant predictors. Results:  The logistic regression analysis revealed a statistically significant impact of β angle and distance between gonion and gnathion (Go-Gn) on the level of lower third molar eruption (P &lt; .001 and P &lt; .015, respectively). The retromolar space was significantly increased in the adult subgroup for all skeletal classes. The lower third molar impaction rate was significantly higher in the adult subgroup with the Class II (62.3%) compared with Class III subjects (31.7%; P &lt; .013). Conclusion:  The most favorable values of linear and angular predictors of mandibular third molar eruption were measured in Class III subjects. For valid estimation of mandibular third molar eruption, certain linear and angular measures (β angle, Go-Gn), as well as the size of the retromolar space, need to be considered.

Social Schemas: An Investigation of Age and Socialization Variables

1971 ◽  
Vol 28 (2) ◽  
pp. 343-348 ◽  
Author(s):  
Alan L. Berman
Keyword(s):  
Age Groups ◽  
Chronological Age ◽  
Maternal Warmth ◽  
Perceptual Accuracy ◽  
Chi Square ◽  
Normal Children ◽  
Replacement Technique

The Felt Figure Replacement Technique (FFRT) was administered to 160 normally adjusted male Ss in three distinct chronological age groups. It was hypothesized that the existence of common social schemas would vary with age and that a neutral-latency group of Ss (aged 9.5 to 10.5 yr.) would produce different schematic reconstructions based on relative degrees of perceived maternal warmth. Chi-square analyses did not support the hypotheses. The results were interpreted as consistent with studies of perceptual accuracy and at odds with the use of the FFRT by groups of normal children. Contrasts were made with the positive findings of other researchers using deviant and/or mature normal Ss.

scholarly journals Prevalence and gender differences of buccally displaced canines of 12 years school children and 18-23 years adults in Shah-Alam, Malaysia

2021 ◽  
Vol 6 (2) ◽  
pp. 39-42
Author(s):  
Majda T. Elfseyie ◽  
◽  
Nagham M.A. Al-Jaf ◽  
Mohamed I. Abu Hassan ◽  
◽  
...  
Keyword(s):  
Gender Differences ◽  
School Children ◽  
Treatment Plan ◽  
Age Groups ◽  
Clinical Signs ◽  
Clinical Situation ◽  
Cross Sectional Study ◽  
Chi Square ◽  
Cross Sectional ◽  
And Gender

Background: The buccally displaced canines (BDC) are more commonly encountered conditions in orthodontic clinics. It is a positional variation result of several factors such as retained deciduous canines, crowding, and lateral incisors anomalous. Aims: To determine the prevalence and gender differences of one-two-three-four buccally displaced canines in the area of Shah-Alam, Malaysia. Methods: A cross-sectional study of 399 subjects; was consist of two age groups; 208 subjects of school children aged 12 years and 191 subjects of adults aged 18-23 years were examined clinically to determine the prevalence of BDC. Statistical analysis: The data were statistically analyzed using SPSS version 16; a Chi-square test was performed to assess the gender differences. Results: No gender differences were found in the school-children group while in the adults group a significant gender difference was found regarding one and four canine displacements (P < 0.05). The prevalence of one-two-three canine displacement was higher significantly between the two groups (P < 0.05). However, the frequency of one canine displacement was higher significantly in adult females and girls (P < 0.05). The frequency of three canines displacement was approximately equal in both genders. Conclusion: The frequency of one canine displacement was higher significantly in females. However, the frequency of four canines displacement was higher significantly in males. These features may help in providing additional clinical signs in diagnosis and interception of such clinical situation. It will be effective in treatment plan procedure if canine displacement is detected early, help clinicians on the prevention of impaction possibility.

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