A Rare Tooth Anomaly (Double Teeth) in Deciduous Teeth: A Case Report

2021 ◽  
Author(s):  
Fataneh Ghorbanyjavadpour
Keyword(s):  
Case Report ◽  
Lateral Incisor ◽  
Permanent Teeth ◽  
Deciduous Teeth ◽  
Tooth Size ◽  
Genetic Characteristics ◽  
Size And Shape ◽  
Size Discrepancy ◽  
Tooth Size Discrepancy ◽  
Double Teeth

Introduction: The Size and shape of the teeth are genetic characteristics. Anomaly in tooth size and shape is due to disturbances in a sequence of morph differentiation and his to differentiation in tooth bud formation periods and is more common in permanent dentition than deciduous teeth. The most common tooth size discrepancy is in the upper lateral incisor and upper and lowers 2nd premolar teeth. About 5% of malocclusions are due to tooth size discrepancy. For having the best occlusion, we must have the appropriate size and shape of teeth. As there is a relation between deciduous and permanent teeth, proper evaluation and timely intervention are essential for achieving a good occlusion in anterior and posterior segments of permanent teeth. Thus we need interceptive orthodontic in mixed dentition period with a good treatment plan for removing the malformed tooth at the proper time and appliance therapy for eruption guidance of other teeth. Case Report: A rare tooth anomaly (double teeth) in deciduous teeth: The case reported here is a 9- years old boy with a delayed eruption of the right lower permanent lateral incisor and gemination of lower right deciduous canine and crowded upper incisors that refer to the orthodontic department of dental school of Ahvaz Jundishapur University of Medical Sciences on7th October of 2020. Conclusion: After creating patient’s file, the further steps of molding from the patient and gathering all diagnostic records such as panoramic radiography, intraoral photography was carried out and ordered to remove the malformed baby tooth afterward. In the next stage, on the patient’s treatment, we installed a strap onto the patient’s first permanent molars, remolded them, then created a lingual arch to maintain the vegetative space in the lower permanent canine and prevent its collapse, and increased the patient’s overbite.

scholarly journals Maxillary Canine—First Premolar Transposition

2007 ◽  
Vol 77 (1) ◽  
pp. 167-175 ◽  
Author(s):  
Leopoldino Capelozza Filho ◽  
Mauriciode Almeida Cardoso ◽  
Tien Li An ◽  
Francisco Antonio Bertoz
Keyword(s):  
Case Report ◽  
Permanent Teeth ◽  
World Population ◽  
Tooth Size ◽  
Maxillary Canine ◽  
The World ◽  
Size Discrepancy ◽  
Facial Pattern ◽  
Tooth Size Discrepancy ◽  
Low Incidence

Abstract Tooth transpositions present at a relatively low incidence in the world population and primarily affect maxillary canines and premolars. Treatment of this disturbance should take into account aspects such as facial pattern, age, malocclusion, tooth-size discrepancy, stage of eruption, and magnitude of the transposition. Mechanics for correction should be entirely individualized, reducing the risks and adverse effects. Practitioners often select simpler options, indicating extraction of permanent teeth, which is an irreversible procedure that may bring about damages to the patient. This study presents a case report and treatment of unilateral transposition of maxillary canine and premolar with repositioning of affected teeth to their respective normal positions.

scholarly journals FGF10 and FGF13 genetic variation and tooth-size discrepancies

2021 ◽  
Author(s):  
Guido Artemio Marañón-Vásquez ◽  
Alexandre Rezende Vieira ◽  
Luiza Vertuan dos Santos ◽  
Arthur Silva Cunha ◽  
Suyany Gabriely Weiss ◽  
...  
Keyword(s):  
Recessive Model ◽  
Permanent Teeth ◽  
P Value ◽  
Tooth Size ◽  
Nucleotide Polymorphisms ◽  
Increased Risk ◽  
Size Discrepancy ◽  
Orthodontic Patients ◽  
Tooth Size Discrepancy ◽  
Mandibular Teeth

ABSTRACT Objectives To explore whether variations in odontogenesis-related genes are associated with tooth-size discrepancies. Materials and Methods Measurements of the width of permanent teeth were obtained from dental casts of 62 orthodontic patients (age 15.65 ± 6.82 years; 29 males and 33 females). Participants were classified according to the anterior and overall Bolton ratios as without tooth-size discrepancy or with maxillary or mandibular tooth-size excess. Genomic DNA extracted from buccal cells was used, and 13 single nucleotide polymorphisms (SNPs) across nine genes were genotyped by polymerase chain reaction using TaqMan chemistry. χ2 or Fisher exact tests were applied to determine the overrepresentation of genotypes/alleles depending on the type of tooth-size discrepancy (α = .05; corrected P value: P < 5.556 × 10−3). Odds ratios (ORs) and their correspondent 95% confidence intervals (CIs) were also calculated to investigate the risk of this phenotype for the SNPs having significant association. Results Individuals carrying the FGF10 rs900379 T allele were more likely to have larger mandibular teeth (OR = 3.74; 95% CI: 1.65–8.47; P = .002). This effect appeared to be stronger when two copies of the risk allele (TT) were found (recessive model, OR = 6.16; 95% CI: 1.71–22.16; P = .006). On the other hand, FGF13 rs5931572 rare homozygotes (AA, or male A hemizygotes) had increased risk of displaying tooth-size discrepancies when compared with the common homozygotes (GG, or male G hemizygotes; OR = 10.32; 95% CI: 2.20–48.26; P = .003). Conclusions The results suggest that FGF10 and FGF13 may contribute to the presence of tooth-size discrepancies.

scholarly journals Modified Intra-alveolar appliance — Case report

2021 ◽  
Vol 7 (3) ◽  
pp. 203-205
Author(s):  
Himanshu Aeran ◽  
Avantika Tuli ◽  
Akriti Chauhan
Keyword(s):  
Case Report ◽  
Tooth Size ◽  
Early Loss ◽  
Pediatric Dentist ◽  
Size Discrepancy ◽  
Tooth Size Discrepancy ◽  
Deciduous Molars ◽  
Distal Shoe

Arch space/ Tooth size discrepancy occurs whenever there is a early loss of the deciduous molars which eventually leads to malocclusion. Prevention of this discrepancy has always been a challenge for a pediatric dentist. This case report describes modified bilateral distal shoe appliance fabricated due to inadequate abutment support.

scholarly journals Mesiodistal Crown Dimensions of the Permanent Dentition in a Nigerian Population

2018 ◽  
Vol 23 (2) ◽  
pp. 57-60 ◽  
Author(s):  
Emmanuel O. Ajayi ◽  
Yetunde O. Ajayi ◽  
Helen O. Oboro ◽  
Nneka M. Chukwumah
Keyword(s):  
Normative Data ◽  
Permanent Dentition ◽  
Permanent Teeth ◽  
Tooth Size ◽  
Significant Difference ◽  
Nigerian Subjects ◽  
Size Discrepancy ◽  
Nigerian Population ◽  
Tooth Size Discrepancy ◽  
Crown Dimensions

Mesiodistal crown dimensions of the permanent dentition were assessed in a Nigerian population. The study sample consisted of 54 dental casts of Nigerian subjects (33 males; 21 females) with a mean age of 26.6 (sd = 2.1) years. The subjects had their permanent teeth present and fully erupted from first molar to first molar, no interproximal caries or restorations and no abnormal tooth sizes or shapes. Descriptive statistics are provided. Sex differences in the means and comparisons with the means from other population were evaluated using t-tests. Results revealed no statistically significant difference in mesiodistal crown dimensions between the sexes and no left to right side tooth size discrepancy in the sample. The study provides normative data on the mesiodistal crown dimensions of Nigerian subjects. Compared to African Americans, crown dimensions tended to be smaller in these Nigerians, especially in males.

scholarly journals Posterior tooth size discrepancy

2008 ◽  
Vol 11 (1) ◽  
pp. 8-22 ◽  
Author(s):  
Arlette Oueiss ◽  
Christine Marchal-Sixou ◽  
Ahmad Dallow ◽  
Pascal Baron ◽  
Jacques Faure
Keyword(s):  
Tooth Size ◽  
Posterior Tooth ◽  
Size Discrepancy ◽  
Tooth Size Discrepancy

scholarly journals Tooth Size Discrepancies in an Orthodontic Population

2007 ◽  
Vol 77 (4) ◽  
pp. 668-674 ◽  
Author(s):  
Siti Othman ◽  
Nigel Harradine
Keyword(s):  
Tooth Size ◽  
Visual Estimation ◽  
Tooth Width ◽  
Size Discrepancy ◽  
Orthodontic Patients ◽  
Tooth Size Discrepancy ◽  
Size Correction ◽  
Clinically Significant ◽  
Low Sensitivity ◽  
Lower Arch

Abstract Objective: To explore how many millimeters of tooth size discrepancy (TSD) are clinically significant, to determine what percentage of a representative orthodontic population has such a tooth size discrepancy, and to determine the ability of simple visual inspection to detect such a discrepancy. Materials and Methods: The sample comprised 150 pretreatment study casts with fully erupted and complete permanent dentitions from first molar to first molar, which were selected randomly from 1100 consecutively treated white orthodontic patients. The mesiodistal diameter tooth sizes were measured using digital calipers, and the Bolton analysis and the tooth size corrections were calculated by the Hamilton Arch Tooth System (HATS) software. Simple visual estimation of Bolton discrepancy was also performed. Results: In the sample group 17.4% had anterior tooth-width ratios and 5.4% had total arch ratios greater than 2 of Bolton's standard deviations from Bolton's mean. For the anterior analysis, correction greater than ± 2 mm was required for 16% of patients in the upper arch or 9% in the lower arch. For the total arch analysis, the corresponding figures are 28% and 24%. Conclusions: It is recommended that 2 mm of required tooth size correction is an appropriate threshold for clinical significance. A significant percentage of patients have a TSD of this size. Visual estimation of TSD has low sensitivity and specificity. Careful measurement is more frequently required in clinical practice than visual estimation would suggest.

scholarly journals Tabel Prediksi Moyers dan Sitepu terhadap Lebar Mesiodistal Gigi Permanen Pengganti pada Etnis Arab Yaman di Surabaya

2020 ◽  
Vol 8 (1) ◽  
pp. 42
Author(s):  
Firyal Baktir ◽  
Dwi Prijatmoko ◽  
Masniari Novita
Keyword(s):  
Key Words ◽  
Prediction Method ◽  
Mixed Dentition ◽  
Prediction Methods ◽  
Tooth Size ◽  
Cross Sectional ◽  
Caucasian Race ◽  
Size Discrepancy ◽  
Tooth Size Discrepancy ◽  
Cross Sectional Design

There are several methods of analizing tooth size discrepancy in orthodontics include prediction methods for mixed dentition. Prediction method of Moyers and Sitepu most commonly used although both were obtained from 2 different races, Caucasian and Deutromelayu. Yemeni ethnic is one of the ethnic groups settled in Indonesia which descendants of the Caucasian race. The aim of the study was to observed the suitable prediction table for Yemeni ethnic. It was an observasional analitics study consist of 40 samples with cross sectional design. The results showed that slight difference for prediction of Moyers on the maxilla (1.02) and prediction of Sitepu on the mandibula (0.11). As conclusion, the most suitable predicition method for Yemeni ethnic is Moyers’s method for maxila and sitepu’s method for mandibula.   Key words: mesiodistal width permanen teeth, Moyers method, Sitepu method, Yemeni Etnic

scholarly journals Effect of Bi-jaw Premolar Extractions on Tooth Size Discrepancy in an Indian Population having Class I Malocclusion: An in vitro Study

2017 ◽  
Vol 7 (2) ◽  
pp. 114-117
Author(s):  
Manish Sonawane ◽  
Ravindranath V Krishnan ◽  
Girish R Karandikar ◽  
Samay Tahilramani
Keyword(s):  
Indian Population ◽  
In Vitro Study ◽  
Class I ◽  
Tooth Size ◽  
Premolar Extraction ◽  
Indian Origin ◽  
Size Discrepancy ◽  
Tooth Size Discrepancy ◽  
Overall Ratio

ABSTRACT Aim To evaluate the effect of bi-jaw premolar extractions on Bolton tooth size discrepancy in patients of Indian origin, all of which exhibited a bilateral Angle’s class I molar relationship. Materials and methods Ninety sets of pretreatment study casts, which constituted the sample for the study, were divided into three groups, namely, Bolton small (BS), Bolton normal (BN), and Bolton big (BB). Simulated bi-jaw extraction of premolars was carried out in four different combinations for each set of study cast. The four values of Bolton’s overall ratio (BOR) thus obtained were compared with the original BOR value. Results The BOR value reduced when subjected to any of the four combinations of bi-jaw premolar extractions. Conclusion Premolar extraction in any combination inevitably changes the BOR value, which potentially affects the settling of occlusion toward the finishing stages of orthodontic treatment. Clinical significance The present study provides an insight into the choice of bi-jaw premolar extraction combination for each of the three groups in patients exhibiting class I malocclusion in the Indian population. How to cite this article Tahilramani S, Karandikar GR, Krishnan RV, Sonawane M. Effect of Bi-jaw Premolar Extractions on Tooth Size Discrepancy in an Indian Population having Class I Malocclusion: An in vitro Study. J Contemp Dent 2017;7(2):114-117.

scholarly journals Determination of Bolton Norms for Indian Population Sample

2017 ◽  
Vol 7 (1) ◽  
pp. 33-36 ◽  
Author(s):  
TV Pawan Kumar ◽  
Prasad Chitra
Keyword(s):  
Population Sample ◽  
Tooth Size ◽  
Mean Values ◽  
Class 1 ◽  
Size Discrepancy ◽  
Tooth Size Discrepancy ◽  
Anterior Ratio ◽  
Overall Ratio ◽  
Male Subjects

Introduction: Tooth size discrepancy varies between different ethnic groups and races. Bolton’s tooth size norms were originally determined in Caucasian population.Objective: To determine tooth size ratios for maxillary and mandibular dentition in Telangana population of Indian sample and to compare the ratios with standard Bolton norms.Materials & Method: The study sample comprised of 300 subjects (150 males and 150 females) aged between 14-25 years having Angle’s Class 1 molar relationship. Study models of all subjects were prepared and mesiodistal dimensions were measured to determine mean Bolton’s anterior ratio, overall ratio, over jet and overbite.Result: Evidence of sexual dimorphism was observed with Indian male subjects having greater mean values than the females. The determined mean for anterior tooth ratio was 80.88 ± 3.03%, overall tooth ratio 93.99 ± 3.11%, overjet 2.92 ± 0.62mm and overbite 2.96 ± 0.63mm. Statistically significant differences were found between Indian samples and Bolton Caucasian standards.Conclusion: The study provides evidence that tooth sizes are population specific. Mean values specific to particular population groups should be derived in order to make treatment planning more accurate and predictable.

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