scholarly journals Non-syndromic oligodontia – Report of a clinical case with 14 missing teeth

1970 ◽  
Vol 10 (3) ◽  
pp. 200-202 ◽  
Author(s):  
NB Nagaveni ◽  
KV Umashankara ◽  
NB Radhika ◽  
TS Satisha
Keyword(s):  
Key Words ◽  
Present Article ◽  
Clinical Case ◽  
Permanent Teeth ◽  
Tooth Agenesis ◽  
Third Molars ◽  
Missing Teeth ◽  
Organ Systems ◽  
Exact Etiology ◽  
And Function

Oligodontia (severe partial anodontia) is a rare developmental dental anomaly refers to congenital lack of more than six teeth. Most often oligodontia appears as part of some congenital syndromes that affects several organ systems. The exact etiology for oligodontia is unknown. Management includes various restorative and orthodontic procedures to improve the esthetics and function. The present article reports a case of oligodontia of 14 number of permanent teeth excluding third molars in a non-syndromic female patient. Key words: oligodontia; hypodontia, partial anodontia, tooth agenesis. DOI: http://dx.doi.org/10.3329/bjms.v10i3.8365 BJMS 2011; 10(3): 200-202

scholarly journals HYPODONTIA WITH CLASS I MALLOCLUSION AND MAXILLARY DIASTEMA

2018 ◽  
Vol 1 (2) ◽  
pp. 98
Author(s):  
Bunga Fatimah ◽  
I Gusti Aju Wahju Ardani
Keyword(s):  
Case Management ◽  
Class I ◽  
Tooth Agenesis ◽  
Third Molars ◽  
Missing Teeth ◽  
Facial Aesthetics ◽  
The Third ◽  
Congenitally Missing Teeth ◽  
Congenitally Missing ◽  
Severe Type

Background: Dental agenesis is a term that refers to the absence of one or more teeth, and hypodontia refers to a severe type of tooth agenesis involving less than six or more than one congenitally missing teeth, excluding the third molars. Purpose: This aimed to report the correction of overbite by using intrusion archwires. Case: A 20-year-old female patient had class I malocclusion and deep overbite, incisor retroclination, mild mandibular crowding and agenesis of 12, 13, 14, 15, and 24. Case management: The case was treated with non-extraction using 0.022 pre-adjusted technique to level and unravel using intrusion archwires to correct the deep overbite. Conclusion: The 17-month treatment resulted in a corrected overbite, good occlusion, and good facial aesthetics.

scholarly journals Sequence analysis of candidate genes in two Roma families with severe tooth agenesis

Genetika ◽  
2016 ◽  
Vol 48 (3) ◽  
pp. 945-954
Author(s):  
Dana Gabriková ◽  
Daniela Grejtáková ◽  
Jarmila Bernasovská ◽  
Anna Pavúková ◽  
Barbora Lewandowská ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
Family Members ◽  
Tooth Agenesis ◽  
Sequence Variants ◽  
Third Molars ◽  
Missing Teeth ◽  
Coding Regions ◽  
Large Families ◽  
Variable Phenotype ◽  
Systemic Condition

Selective tooth agenesis is the most common congenital disorder affecting the formation of dentition in humans. Both its forms (hypodontia and more severe oligodontia) can be found either in isolated form and they can be associated with systemic condition (syndromic tooth agenesis). In addition to previously known genes (PAX9, MSX1 and AXIN2) mutations in EDA, EDARADD and WNT10 gene were recently found to be involved in isolated forms of tooth agenesis. The objective of this study was to characterize the phenotype of affected members in two large families of Roma origin segregating severe isolated tooth agenesis with very variable phenotype and to perform mutation analysis of seven genes with aim to find causal mutation. 26 family members were clinically examined and coding regions of seven genes (MSX1, PAX9, AXIN2, EDA, EDAR, EDARADD and WNT10A) were sequenced. With exclusion of third molars, average number of missing teeth was 8.2 ? 4.9 in family 1 and 7.1 ? 2.3 in family 2. The most frequently missing teeth were maxillary lateral incisors and first premolars and mandibular central incisors. Sequencing revealed four potentially damaging variants (g.Ala40Gly in MSX1, g.Ala240Pro in PAX9, g.Pro50Ser in AXIN2 and g.Met9Ile in EDARADD); however, none of them was present in all affected family members. Variable phenotype in both families examined in this study is in favour of heterogeneous genetic cause of tooth agenesis in these families: possible interaction of several defected genes, sequence variants in regulatory regions and additional environmental factors is assumed.

scholarly journals Bilateral Hypodontia of Mandibular Second Premolars and Lateral Incisors in a Nonsyndromic Patient: A Rare Case Report

2016 ◽  
Vol 1 (1) ◽  
pp. 24-26
Author(s):  
Shakun Kanjani
Keyword(s):  
Case Report ◽  
Rare Case ◽  
Permanent Teeth ◽  
Rare Occurrence ◽  
Third Molars ◽  
Missing Teeth ◽  
Dental Anomaly ◽  
Mahatma Gandhi ◽  
The Third ◽  
Rare Case Report

ABSTRACT Hypodontia is the term used to describe the developmental absence of one or more primary or permanent teeth, excluding the third molars. It is the most commonly occurring developmental dental anomaly and can be a challenge to manage clinically. Hypodontia can occur in association with syndrome or it may occur in nonsyndromic patient. Bilateral occurrence is common but it is very rare to see two bilateral congenital missing teeth in a nonsyndromic patient. This case report presents a rare occurrence of congenital bilateral missing mandibular second premolars and mandibular lateral incisors in a nonsyndromic patient. How to cite this article Agarwal N, Chaturvedy S, Marwah N, Mishra P, Kanjani S. Bilateral Hypodontia of Mandibular Second Premolars and Lateral Incisors in a Nonsyndromic Patient: A Rare Case Report. J Mahatma Gandhi Univ Med Sci Tech 2016;1(1):24-26.

Meta-Analysis of Observational Studies on the Most Commonly Missing Permanent Dentition (Excluding the Third Molars) in Non-Syndromic Dental Patients or Randomly-Selected Subjects, and the Factors Affecting the Observed Rates

2015 ◽  
Vol 39 (3) ◽  
pp. 198-207 ◽  
Author(s):  
V Rakhshan
Keyword(s):  
Meta Analysis ◽  
Permanent Teeth ◽  
Third Molars ◽  
Missing Teeth ◽  
Factors Affecting ◽  
Dental Patients ◽  
The Third ◽  
Significant Publication Bias ◽  
Missing Tooth

Purpose: The aim of this study was to summarize the literature on the most frequently missing permanent teeth excluding the third molars. Study design: A search was conducted to find all the available literature (in various scientific and general databases) regarding the most commonly missing teeth with respect to ethnicity and time, as well as factors biasing this outcome. Quality assessment was done to exclude studies with inconsistent information, poor designs, or data pertaining to syndromic cases or the third molars. The role of biasing factors was as well quantitatively assessed using statistical analyses [Q-test, Egger regression, Spearman correlation coefficient, multiple linear regression, Welch t-test] (α=0.05). Results: A total of 81 reports was included. The meta-sample was heterogeneous (P=0.000, Q-test). No significant publication bias was detected (P>0.1, Egger regression). The mandibular second premolar was reported as the most commonly missing tooth in most studies, followed by the maxillary lateral (the most commonly missing in the rest). In terms of the missing share of each tooth percent of all missing teeth, the mandibular second premolar and incisors are more likely to be absent, followed by the maxillary second premolar and lateral. The absence of different teeth can be affected by the ethnicity, sample types (epidemiological or dental patients), sample sizes (only in the case of bimaxillary second premolars), and the minimum ages of pooled subjects (only in the case of the maxillary lateral and the mandibular second premolar). Conclusions: Since enrolling younger patients can bias the results, older patients should be sampled.

scholarly journals Hypodontia prevalence and distribution pattern in a group of Qatari orthodontic and pediatric patients: A retrospective study

2015 ◽  
Vol 09 (02) ◽  
pp. 267-271 ◽  
Author(s):  
Feras H. Abed Al Jawad ◽  
Hanan Al Yafei ◽  
Muneera Al Sheeb ◽  
Buthaina Al Emadi ◽  
Najah Al hashimi
Keyword(s):  
Retrospective Study ◽  
Distribution Pattern ◽  
Pediatric Patients ◽  
Permanent Teeth ◽  
Team Approach ◽  
Third Molars ◽  
Missing Teeth ◽  
Panoramic Radiographs ◽  
Average Value ◽  
Multi Disciplinary Team

ABSTRACT Objectives: The aim of this study was to investigate the prevalence and distribution of hypodontia in the permanent teeth among a group of the Qatari sample and to compare the present results with findings from other populations. Materials and Methods: Records of 1269 Qatari patients (674 females; mean age 11.8 ± 2.3 and 595 males; mean age 11.4 ± 2.2) which included panoramic radiographs were examined to identify hypodontia. All permanent teeth were investigated except third molars. Results: The prevalence of hypodontia was 6.2% (females 8% and males 4.2%; P < 0.05). The majority of patients had one or two missing teeth. There were no significant differences between right and left sides for any particular tooth. The most frequently missing teeth were maxillary lateral incisors (36.2%), followed by mandibular second premolar (32.6%) and maxillary second premolar (20.2%). Hypodontia was more commonly found unilaterally than bilaterally (63.2% and 44.3%; respectively). Conclusions: The prevalence of hypodontia in a group of the Qatari population was within the average value of the majority of published studies in the literature. Hypodontia was significantly more prevalent in females. Although less prevalent, considerable cases of bilateral missing were found in the present study, which necessitates the urgent need for intervention and multi-disciplinary team approach for management.

scholarly journals Assessment of hypodontia in the Turkish patients referring to the orthodontic clinic: A retrospective study

2013 ◽  
Vol 07 (S 01) ◽  
pp. S009-S014 ◽  
Author(s):  
Deniz Uzuner ◽  
Meltem Melik Celik ◽  
Ebubekir Toy ◽  
Candan Okay Turkdonmez
Keyword(s):  
Retrospective Study ◽  
Permanent Teeth ◽  
Third Molars ◽  
Missing Teeth ◽  
Study Results ◽  
Dental Hospital ◽  
Congenitally Missing Teeth ◽  
Pre Treatment ◽  
Turkish Patients ◽  
Congenitally Missing

ABSTRACT Objective: The aim of this retrospective study was to assess the prevalence and distribution of hypodontia in the permanent dentition in a sample of Turkish patients who referred to the Ankara Dental Hospital for orthodontic treatment. Materials and Methods: The pre-treatment orthodontic records of 2530 patients, 1382 girls (54.62%) and 1148 boys (45.38%) between the chronological ages of 7 and 16 years, were examined for evidence of hypodontia. The third molars were excluded in this study. Results: The prevalence of hypodontia in the inspected population was 5% (3.05% for girls, 1.95% for boys). The average number of the congenitally missing teeth per patient was 2.03 (1.08 for girls, 0.95 for boys). The prevalence of the congenitally missing permanent teeth was 34% for the upper laterals, 30% for the lower second premolars, 12.5% for the upper second premolars and 23.5% for the other teeth. Most patients with hypodontia (84.9%) (57.13% for girls, 27.77% for boys) had got missing either one tooth (45.23%) or two teeth (39.67%). Conclusions: The prevalence of hypodontia in girls was higher than in boys in this sample of the Turkish patients. The upper laterals and lower second premolars were consecutively the most symmetrically absent teeth. The prevalence of advanced hypodontia was lower than single and symmetrical hypodontia.

scholarly journals A historiografia da arquitetura brasileira no século XIX e os conceitos de estilo e tipologia

2006 ◽  
Vol 31 (2) ◽  
Author(s):  
Sonia Gomes Pereira
Keyword(s):  
Key Words ◽  
Present Article ◽  
21St Century ◽  
Formal Solution ◽  
Artistic Production ◽  
Structural Differences ◽  
And Function

Esse artigo analisa os conceitos de estilo e tipo, examinando as suas diferenças estruturais – a base histórica e geográfica do estilo em oposição à relação entre solução formal, gênero e função no tipo –, e tentando evidenciar a operacionalidade de ambos na reavaliação crítica da produção artística do século XIX. Abstract The present article analyses he concepts of style and type, by examining its structural differences – the historical and geographical base of style as opposed to the relation between formal solution, genre and function concerning type – and attempts to show the operationality of both in the critical reevaluation of the artistic production of the 21st century. Palavras-chave: Estilo. Tipologia. Historiografia da arte. Século XIX. Key words: Style. Typology. Historiography of art. 19st century.

scholarly journals Third molar tooth agenesis and pattern of impaction in patients with palatally displaced canines

2018 ◽  
Vol 89 (1) ◽  
pp. 64-70
Author(s):  
Elham S. Abu Alhaija ◽  
Fedaa T. Wazwaz
Keyword(s):  
Third Molar ◽  
Control Group ◽  
Tooth Agenesis ◽  
Third Molars ◽  
Missing Teeth ◽  
Control Groups ◽  
Third Molar Agenesis ◽  
High Prevalence ◽  
The Difference ◽  
And Control

ABSTRACT Objectives: To investigate the association between third molar agenesis and pattern of impaction, missing teeth, and peg-shaped lateral incisor with palatal canine displacement (PDC). Materials and Methods: The pretreatment orthodontic orthopantomograms of 438 patients (122 males and 316 females) diagnosed with PDC were included. A total of 338 patients with normally erupted canines who had a preexisting radiograph as part of their orthodontic treatment (125 males and 313 females) served as controls. Orthopantomograms were evaluated for missing third molars, third molar eruption status, and type of impaction, third molar spaces, third molar width, and angulation. Results: In the PDC group, at least one third molar was missing in 48% and 19% in the upper and lower arches, respectively. Also, 38% and 67% of PDC patients had at least one third molar impaction in the upper and lower arches, respectively. The difference between the PDC and control groups was significant for both missing and impacted third molars (P &lt; .001 for each). The most common type of third molar impaction in the upper arch was vertical and distoangular in the PDC and control groups, respectively. Upper and lower third molar width and spaces were reduced in PDC patients when compared with the control group (P &lt; .001). In PDC patients, missing teeth and peg-shaped lateral incisors were recorded in 5.6% and 9.1%, respectively. Conclusions: PDC patients showed a high prevalence of third molar agenesis and impaction. Upper and lower third molar width and space were reduced in the PDC patients. There were no significant associations between tooth agenesis (other than third molars) and the PDC anomaly.

scholarly journals A Rare case report of Oligodontia in the permanent dentition

2014 ◽  
Vol 13 (4) ◽  
pp. 488-491
Author(s):  
Suresh Ramamurthy
Keyword(s):  
Rare Case ◽  
Medical Science ◽  
Complex Problem ◽  
Permanent Teeth ◽  
Third Molars ◽  
Facial Disfigurement ◽  
The Third ◽  
Rare Case Report ◽  
Old Adult ◽  
And Function

Oligodontia is a rare congential disorder of dental anomalies that can occur either as an isolated finding or as part of a syndrome. It is defined as agenesis of six or more teeth excluding the third molars. It is commonly seen in permanent than in deciduous dentition. Patients suffering from oligodontia may present with complex problem such as dental and facial disfigurement. Management of those cases generally requires multidisciplinary approach to restore esthetic and function. This paper reports a rare case of oligodontia in an 18 year old adult female patient who has been missing eight permanent teeth excluding the third molars, clinically and radiographically. DOI: http://dx.doi.org/10.3329/bjms.v13i4.16048 Bangladesh Journal of Medical Science Vol.13(4) 2014 p.488-491

scholarly journals Multidisciplinary treatment of non-syndromic oligodontia

2012 ◽  
Vol 06 (02) ◽  
pp. 218-226 ◽  
Author(s):  
Canan Bural ◽  
Evren Oztas ◽  
Sukru Ozturk ◽  
Gulsen Bayraktar
Keyword(s):  
Genetic Counseling ◽  
Case Report ◽  
Autosomal Recessive ◽  
Treatment Approach ◽  
Multidisciplinary Treatment ◽  
Permanent Teeth ◽  
Second Phase ◽  
Third Molars ◽  
Missing Teeth ◽  
Occlusal Vertical Dimension

ABSTRACTOligodontia is the agenesis of 6 or more teeth, excluding third molars. The etiology of congenital absence of teeth is believed to be rooted in heredity or developmental anomalies. The absence of teeth in patients can cause aesthetic, functional, and psychological problems, particularly if the anterior region is involved. This case report describes the multidisciplinary treatment approach toward a patient 17 years of age with non-syndromic oligodontia, with absence of 11 permanent teeth. Genetic counseling revealed non-syndromic, autosomal-recessive-linked oligodontia. The objectives of the first phase of therapy were pre-prosthetic orthodontic space opening for proper positioning of the missing teeth and correction of inter-maxillary relations, as a prerequisite for proper prosthetic restoration. The second phase of therapy was prosthetic restoration of the missing teeth and provision of occlusion with full-mouth porcelain fused to metal crowns and bridges after increasing occlusal vertical dimension by 2 mm. (Eur J Dent 2012;6:218-226)

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