1
|
Arif K, Gupta VK, Mishra G, Kumar S, Pai Khot A, Bhatia S, Patil RK, Singh A, Imran Khan M. Assessment of prevalence and distribution of congenital missing teeth among patients visiting tertiary care hospital: A radiographic study. J Oral Biol Craniofac Res 2024; 14:342-348. [PMID: 38736972 PMCID: PMC11087966 DOI: 10.1016/j.jobcr.2024.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 04/06/2024] [Accepted: 04/09/2024] [Indexed: 05/14/2024] Open
Abstract
Introduction Dental Agenesis is the usual developmental dental anomaly involving both primary and permanent dentition but most commonly it affects the permanent teeth. Genetic mutations in genes like MSX, PAX9,TGFA and AXIN2 are the likely primary contributors to tooth agenesis. Identifying the prevalence and distribution of congenital missing teeth allows for early detection and intervention which is crucial for preventing or mitigating potential dental issues that may arise due to missing teeth. Aim & objectives To assess the prevalence and distribution of congenitally missing teeth across different quadrants of the jaw among patients visiting to the Dental out patient department at Tertiary Care Centre of Lucknow city. Material & method A Questionnaire and orthopantomogram based cross-sectional study was conducted on both male and female patients aged between 15 and 30 years, coming for evaluation of their dental health problems to the hospital. Written informed consent was obtained. Results The overall prevalence of CMT was found to be 33.3 %. The significant difference was observed in proportion of CMT between Maxilla and Mandible sites (p = 0.008). Higher prevalence was in females compared to males for both maxillary and mandibular congenital missing teeth. (p = 0.020). Conclusion The most common CMT were third molars followed by lateral incisors. The insights derived from the study would aid dental professional in gaining a deeper comprehension of tooth agenesis.
Collapse
Affiliation(s)
- Khushboo Arif
- Department of Public Health Dentistry, Faculty of Dental Sciences, King George's Medical University, U.P, Lucknow, India
| | - Vinay Kumar Gupta
- Department of Public Health Dentistry, Faculty of Dental Sciences, King George's Medical University, U.P, Lucknow, India
| | - Gaurav Mishra
- Department of Public Health Dentistry, Faculty of Dental Sciences, King George's Medical University, U.P, Lucknow, India
| | - Sumit Kumar
- Department of Public Health Dentistry, Faculty of Dental Sciences, King George's Medical University, U.P, Lucknow, India
| | - Atrey Pai Khot
- Department of Public Health Dentistry, Faculty of Dental Sciences, King George's Medical University, U.P, Lucknow, India
| | - Sonal Bhatia
- Department of Public Health Dentistry, Faculty of Dental Sciences, King George's Medical University, U.P, Lucknow, India
| | - Ranjit kumar Patil
- Department of Oral Medicine & Radiology, King George's Medical University, U.P, Lucknow, India
| | - Abhishek Singh
- Department of Community Medicine & Public Health, King George's Medical University, U.P, Lucknow, India
| | - Mohammad Imran Khan
- Department Of Oral & Maxillofacial Pathology, Career Post Graduate Institute Of Dental Sciences & Hospital, Ghailla, Lucknow, India
| |
Collapse
|
2
|
Tallón-Walton V, Sánchez-Molins M, Hu W, Martínez-Abadías N, Casado A, Manzanares-Céspedes MC. Comprehensive Oral Diagnosis and Management for Women with Turner Syndrome. Diagnostics (Basel) 2024; 14:769. [PMID: 38611682 PMCID: PMC11011770 DOI: 10.3390/diagnostics14070769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
Turner Syndrome (TS) is a rare genetic disorder that affects females when one of the X chromosomes is partially or completely missing. Due to high genetic and phenotypic variability, TS diagnosis is challenging and is often delayed until adolescence, resulting in poor clinical management. Numerous oral, dental and craniofacial anomalies have been associated with TS, yet a comprehensive description is still lacking. This study addresses this gap through a detailed analysis of oral health and craniofacial characteristics in a cohort of 15 females with TS and their first-degree relatives. Subjects with TS ranged from 3 to 48 years old, none showed evidence of periodontal disease and only the youngest was in mixed dentition. Using the Multifunction System, we identified an aggregation of multiple signs and symptoms in each TS subject, including tooth anomalies (supernumerary molars, agenesis, microdontia, enamel defects, alterations in eruption patterns -advanced and delayed for chronological age-, crowding, rotations and transpositions), malocclusion (class II/1 and II/2) and Class II facial profile, while relatives exhibited fewer manifestations. The early detection of these signs and symptoms is crucial for appropriate referral and the optimal clinical management of TS, especially during the critical period of 9 to 10 years when congenital dental anomalies appear. The use of an established taxonomy to describe these phenotypic features is essential for early detection. Multidisciplinary teams are required to ensure holistic care management in rare diseases like TS.
Collapse
Affiliation(s)
- Victoria Tallón-Walton
- Human Anatomy and Embryology Unit, Experimental Pathology and Therapeutics Department, University of Barcelona, 08907 Barcelona, Spain; (V.T.-W.); (W.H.)
| | | | - Wenwen Hu
- Human Anatomy and Embryology Unit, Experimental Pathology and Therapeutics Department, University of Barcelona, 08907 Barcelona, Spain; (V.T.-W.); (W.H.)
| | - Neus Martínez-Abadías
- Evolutionary Biology, Ecology and Environmental Sciences Department, University of Barcelona, 08007 Barcelona, Spain;
| | - Aroa Casado
- Evolutionary Biology, Ecology and Environmental Sciences Department, University of Barcelona, 08007 Barcelona, Spain;
| | - María Cristina Manzanares-Céspedes
- Human Anatomy and Embryology Unit, Experimental Pathology and Therapeutics Department, University of Barcelona, 08907 Barcelona, Spain; (V.T.-W.); (W.H.)
| |
Collapse
|
3
|
Cicek O, Arslan D. Investigation of the Mesiodistal Angulations of Maxillary Canines and Central Incisors for Missing Bilateral Maxillary Lateral Incisor. J Clin Med 2024; 13:2110. [PMID: 38610875 PMCID: PMC11012414 DOI: 10.3390/jcm13072110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/27/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
(1) Background: A missing bilateral maxillary lateral incisor (MBMLI) causes aesthetic and functional problems and a multidisciplinary approach is required for treatment. This study aimed to compare the changes in the mesiodistal axial angulations of the maxillary canines and central incisors with orthodontic treatment of MBMLI. (2) Methods: A total of 56 patients with MBMLI were included in the study, and three groups were formed: the control group (Group 1, n = 20) with untreated ideal occlusion and the space opening (Group 2, n = 20) and space closure (Group 3, n = 16) groups as treated study groups. The mesiodistal angulations between the long axes of the maxillary right canine (tooth no 13), right central incisor (tooth no 11), left central incisor (tooth no 21) and maxillary left canine (tooth no 23), and the bicondylar plane, were measured on the panoramic radiographs taken pre (T0) and post treatment (T1). p < 0.05 was accepted for statistical significance. (3) Results: At T0, while there was no significant difference between the mesiodistal angulations of the right-left maxillary canines and central incisors in all groups (p > 0.05), the mesiodistal angulations of the canines in the Group 1 were significantly higher than the study groups (p < 0.05). With treatment, while the mesiodistal angulation of the canines increased in Group 2, it decreased in Group 3 (p < 0.05). On the other hand, the mesiodistal angulation of the central incisors decreased in Group 2 and did not change in Group 3 (p > 0.05). At T1, the mesiodistal angulation of the canines was found to be lower in Group 3 than in Groups 1 and 2, while the angulation of the central incisors was found to be lower in Group 2 compared to Group 1 (p < 0.05). (4) Conclusions: In the orthodontic treatment of MBMLIs, changes in the mesiodistal angulations of the maxillary canine and central incisors should be taken into account for satisfactory outcomes. It was concluded that there should be a tendency to select the space closure method in which normal mesiodistal angulations are obtained in maxillary central incisors for aesthetics and planned incisor position, and also at a low cost.
Collapse
Affiliation(s)
- Orhan Cicek
- Department of Orthodontics, Faculty of Dentistry, Zonguldak Bulent Ecevit University, Zonguldak 67600, Türkiye
| | - Deniz Arslan
- Department of Orthodontics, Faculty of Dentistry, Zonguldak Bulent Ecevit University, Zonguldak 67600, Türkiye
| |
Collapse
|
4
|
Alamoudi R, Kanavakis G, Oeschger ES, Halazonetis D, Gkantidis N. Occlusal characteristics in modern humans with tooth agenesis. Sci Rep 2024; 14:5840. [PMID: 38462644 PMCID: PMC10925589 DOI: 10.1038/s41598-024-56449-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 03/06/2024] [Indexed: 03/12/2024] Open
Abstract
Non-syndromic permanent tooth agenesis affects a significant proportion of the population, especially if third molars are considered. Although tooth agenesis has been linked to a smaller craniofacial size, reduced facial convexity and a shorter skeletal face, the occlusal characteristics of individuals with tooth agenesis remain largely unexplored. Therefore, this study investigated potential associations between tooth agenesis and metric occlusal traits in 806 individuals (491 with 4.1 missing teeth per subject, including third molars, and 315 without any tooth agenesis). Dentoskeletal morphology was defined through anatomical landmarks on pre-treatment cephalometric radiographs. Multivariate regression models, adjusted for sex and age, showed that tooth agenesis was significantly associated with a reduced overjet, an increased interincisal angle, and shorter upper and lower dental arch lengths, but not with overbite. Moreover, apart from reduced tooth length and dentoalveolar effects, as the number of missing teeth increased the upper front teeth were progressively retruded according to the craniofacial complex and to the face. Thus, tooth agenesis has a substantial influence on dental and occlusal characteristics, as well as on the sagittal position and inclination of anterior teeth. These findings emphasize the necessity for personalized, multidisciplinary approaches in individuals with multiple agenesis to successfully meet treatment goals.
Collapse
Affiliation(s)
- Ragda Alamoudi
- Department of Orthodontics and Dentofacial Orthopedics, University of Bern, 3010, Bern, Switzerland
| | - Georgios Kanavakis
- Department of Orthodontics and Pediatric Dentistry, UZB - University School of Dental Medicine, University of Basel, 4056, Basel, Switzerland
- Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Elias S Oeschger
- Department of Orthodontics and Dentofacial Orthopedics, University of Bern, 3010, Bern, Switzerland
| | - Demetrios Halazonetis
- Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Nikolaos Gkantidis
- Department of Orthodontics and Dentofacial Orthopedics, University of Bern, 3010, Bern, Switzerland.
| |
Collapse
|
5
|
Arandi NZ, Rabi T. Mandibular Second Premolar Agenesis: A Retrospective Cross-sectional Study from Palestine. JOURNAL OF PHARMACY AND BIOALLIED SCIENCES 2024; 16:S125-S129. [PMID: 38595493 PMCID: PMC11001156 DOI: 10.4103/jpbs.jpbs_414_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 07/29/2023] [Accepted: 07/31/2023] [Indexed: 04/11/2024] Open
Abstract
Objectives This retrospective study aimed to determine the prevalence of congenitally missing mandibular second premolars. Materials and Methods A total of 1,843 radiographs were collected from five different cities in Palestine. Two experienced dentists independently examined the panoramic radiographs and demographic data (age and gender). Results Among the 1,843 radiographs, 1,039 were for females (57.37%) and 804 were for males (43.63%); 13 cases had at least one congenitally mandibular second premolar. The prevalence of congenitally missing mandibular second premolars in the study population was 0.7%. There was no significant association between gender and mandibular second premolar agenesis. Unilateral agenesis was more common than bilateral, and the left side had more cases of congenitally missing mandibular second premolars than the right side. Conclusions The prevalence of congenitally missing mandibular second premolars in this study population was 0.7%, within the range reported in other populations.
Collapse
Affiliation(s)
- Naji Z. Arandi
- Department of Conservative Dentistry, Faculty of Dentistry, Arab American University, Jenin, Palestine
| | - Tarek Rabi
- Department of Conservative Dentistry, Faculty of Dentistry, Al-Quds University, Palestine
| |
Collapse
|
6
|
Lupinetti GM, Li P, Feagin K, MacDougall M, Lamani E. Non-syndromic hypodontia of maxillary lateral incisors and its association with other dental anomalies. Prog Orthod 2022; 23:53. [PMID: 36581787 PMCID: PMC9800678 DOI: 10.1186/s40510-022-00451-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 11/15/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Tooth agenesis (TA) is the developmental absence of one or more teeth and is the most common craniofacial disorder in humans. Maxillary lateral incisor agenesis (MLIA) is a specific subtype of TA and can have esthetic, functional, and psychosocial implications for patients. The aim of this study was to evaluate the prevalence of MLIA amongst patients with non-syndromic tooth agenesis, as well as its association with other dental anomalies. MATERIALS AND METHODS The dental records of 240 patients with non-syndromic congenitally missing teeth treated at the University of Alabama at Birmingham Department of Orthodontics were reviewed. Dolphin Imaging software was used to identify missing teeth, microdonts, peg laterals, impactions, and transpositions. Data were analyzed using chi-square or Fisher's exact test. All the tests were two-sided at the significance level of 0.05 (SAS 9.4). RESULTS In the patient cohort, MLIA prevalence was 37.5% (second most common) and no gender or ethnic differences were identified. We also observed the bilaterally missing lateral incisors more frequently than the unilateral presentation (p = 0.0006). Additionally, 62.5% of patients with unilateral MLIA displayed a contralateral tooth that was a peg (p = 0.0001); however, no association was found with other microdonts. Furthermore, of the 90 patients missing at least one maxillary lateral incisor, 42.2% were missing another tooth type and 10% of MLIA patients also had an impacted tooth (mainly maxillary canines). However, these were not statistically significant. Finally, no transposed teeth were found in our patients. CONCLUSIONS This study found that maxillary lateral incisors were the second most frequently missing teeth. When clinicians diagnose congenital absence of a maxillary lateral incisor, the patient should be evaluated for other missing teeth, peg lateral incisors, or potential impactions, especially maxillary canines.
Collapse
Affiliation(s)
- Giana Maria Lupinetti
- grid.265892.20000000106344187Department of Orthodontics, School of Dentistry, University of Alabama at Birmingham, 1919, 7th Avenue South, SDB 313, Birmingham, AL 35294-0007 USA
| | - Peng Li
- grid.265892.20000000106344187Department of Acute, Chronic and Continuing Care, School of Nursing, University of Alabama at Birmingham, Birmingham, AL USA
| | - Kyle Feagin
- grid.265892.20000000106344187Department of Orthodontics, School of Dentistry, University of Alabama at Birmingham, 1919, 7th Avenue South, SDB 313, Birmingham, AL 35294-0007 USA
| | - Mary MacDougall
- grid.17091.3e0000 0001 2288 9830Faculty of Dentistry, University of British Columbia, Vancouver, BC Canada
| | - Ejvis Lamani
- grid.265892.20000000106344187Department of Orthodontics, School of Dentistry, University of Alabama at Birmingham, 1919, 7th Avenue South, SDB 313, Birmingham, AL 35294-0007 USA
| |
Collapse
|
7
|
Association between Hypodontia and Angle’s Malocclusions among Orthodontic Patients in Kathmandu, Nepal. Int J Dent 2022; 2022:9595920. [DOI: 10.1155/2022/9595920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 12/12/2022] Open
Abstract
Background. Disturbances during the early tooth development stages may result in the congenital absence of teeth. The purpose of this study was to assess the relationship between hypodontia and Angle’s malocclusions. Materials and Methods. The sample comprised 601 orthodontic patients’ pretreatment records (242 men and 259 women), selected from the achieved orthodontic records. Developmental anomalies of teeth affecting the number were examined on dental panoramic radiographs. Based on Angle’s classification, pretreatment dental casts were assessed and classified into different classes of malocclusion. The relationship between hypodontia and different classes of malocclusion was evaluated using the chi-square test. Results. The prevalence of tooth agenesis was 7.48%, that is, 45 out of 601 samples. There were a total of 72 (0.42%) missing teeth, excluding the third molars. The most frequent missing tooth was the maxillary lateral incisor (35, 48.61%), followed by the mandibular lateral incisor (14, 19.44%), the mandibular central incisor (6, 8.33%), the mandibular second premolar (5, 6.294%), and the maxillary second premolar (4, 5.55%). Hypodontia was more common in the upper jaw. Although hypodontia was mostly seen in Class I malocclusion patients (7.87%), followed by Class II malocclusion patients (6.99%) and least in Class III malocclusion patients. However, there was no significant difference in hypodontia among different classes of malocclusions (p = 0.352). Conclusion. The most frequently missing tooth was the maxillary lateral incisor, followed by lateral and central mandibular incisors and mandibular second premolars, while excluding the third molars. The present study did not find any association between various types of malocclusions and hypodontia.
Collapse
|
8
|
Farcașiu AT, Luca R, Didilescu A, Stanciu IA, Farcasiu C, Vinereanu A, Munteanu A. Congenitally missing second permanent molars in non‑syndromic patients (Review). Exp Ther Med 2021; 23:145. [PMID: 35069826 PMCID: PMC8756395 DOI: 10.3892/etm.2021.11068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/15/2021] [Indexed: 11/23/2022] Open
Abstract
Hypodontia (tooth agenesis) is regarded as the most common congenital dental anomaly. The present review discusses the epidemiological characteristics of congenitally missing second permanent molars (CMSPMs) within a systematic review of the literature. The review was based on Pubmed library associated with the search of various scientific databases or academic resources, improved by hand search of reference lists. The terms ‘hypodontia’ or ‘anodontia’ in combination with ‘prevalence’ or ‘epidemiology’ were searched in the data sources for studies published between January 2001 and December 2020. Abstracts of non-English papers were also analyzed. The inclusion criteria were as follows: i) Study provided precise data about CMSPMs, even if no second permanent molar was reportedly missing; ii) the number of CMSPMs distributed by jaw was provided and iii) studies on subjects >3 years were used. The exclusion criteria were as follows: i) Studies on patients with history of trauma of the maxilla or the mandible, any type of syndrome affecting bone metabolism, metabolic disorders, previous extraction or tooth loss due to dental caries, cleft lip and palate; ii) studies performed on cohorts of patients with hypodontia and iii) studies reporting data including third molars, except for those that presented sufficient data to perform correct calculations. A total of 79 studies were selected, accumulating a population of 281,968 people, with an average sample size of 3,524.60±11,255.25. The prevalence of CMSPMs (IpHSPM) was 2.79±3.16% among all missing teeth (1.03±1.59% for upper CMSPMs and 1.76±2.32% for lower CMSPMs; P=0.011). There were no significant differences (P=0.250) in IpHSPM between men (1.59±1.52%) and women (2.13±1.67%). However, significant differences were recorded between continents. Furthermore, lower CMSPMs were found more frequently in orthodontic samples (P=0.033). The prevalence of CMSPMs is low compared with the overall prevalence of CM teeth. Despite the rarity of these anomalies, early detection is important to enable practitioners to plan and start treatment at the best time for optimal results.
Collapse
Affiliation(s)
- Alexandru-Titus Farcașiu
- Department of Removable Prosthodontics, Faculty of Dental Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 032799, Romania
| | - Rodica Luca
- Department of Pedodontics, Faculty of Dental Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 032799, Romania
| | - Andreea Didilescu
- Department of Embryology, Faculty of Dental Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 032799, Romania
| | - Ioana-Andreea Stanciu
- Department of Pedodontics, Faculty of Dental Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 032799, Romania
| | - Catalina Farcasiu
- Department of Pedodontics, Faculty of Dental Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 032799, Romania
| | - Arina Vinereanu
- Department of Pedodontics, Faculty of Dental Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 032799, Romania
| | - Aneta Munteanu
- Department of Pedodontics, Faculty of Dental Medicine, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 032799, Romania
| |
Collapse
|
9
|
Suyama T, Ishikawa H, Tamaoki S, Higa R, Takata S, Sawa Y. Maxillofacial morphological characteristics in growing orthodontic patients with non-syndromic oligodontia. Orthod Craniofac Res 2021; 25:393-400. [PMID: 34825769 DOI: 10.1111/ocr.12548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 11/04/2021] [Accepted: 11/12/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Patients with oligodontia frequently show different types of malocclusions. However, how oligodontia affects the maxillofacial growth remains uncertain. This study aimed to investigate the maxillofacial morphological characteristics in growing patients with oligodontia. SETTING AND SAMPLE POPULATION The study subjects included 33 Japanese children with non-syndromic oligodontia (14 boys and 19 girls; mean age: 10.2 years) who visited the orthodontic clinic of Fukuoka Dental College Medical and Dental Hospital from 1999 to 2019. MATERIALS AND METHODS Cephalometric analyses were performed, and the variables measured in each subject were converted into Z scores in relation to the mean and standard deviation of the Japanese norms matched for growth stage. The one-sample t-test or Wilcoxon signed-rank test was performed to compare the mean scores in the patients with oligodontia with those of the Japanese norms. RESULTS Compared with the Japanese norms, patients with oligodontia showed a smaller convexity and larger A-B plane and SNB angles. The Frankfort-mandibular plane and gonial angles were smaller, whereas the height of the ramus was larger. The vertical height of the alveolar bone in the maxillary and mandibular incisors and molar areas was smaller in patients with oligodontia. CONCLUSIONS Patients with oligodontia showed Class III skeletal tendency with mandibular prognathism and flattened mandibular plane with a smaller gonial angle. These maxillofacial morphological features can be induced by a deficiency in the vertical growth of the alveolar bone in the maxillary and mandibular molar areas due to the lack of tooth germs.
Collapse
Affiliation(s)
- Taiki Suyama
- Section of Orthodontics, Department of Oral Growth and Development, Fukuoka Dental College, Fukuoka, Japan
| | | | - Sachio Tamaoki
- Section of Orthodontics, Department of Oral Growth and Development, Fukuoka Dental College, Fukuoka, Japan
| | - Remi Higa
- Section of Orthodontics, Department of Oral Growth and Development, Fukuoka Dental College, Fukuoka, Japan
| | - Shunsuke Takata
- Section of Orthodontics, Department of Oral Growth and Development, Fukuoka Dental College, Fukuoka, Japan
| | - Yoshihiko Sawa
- Department of Oral Function & Anatomy, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan
| |
Collapse
|
10
|
Kour S, Neeraj Grover, Nishant Singh. Comparison and Association of Dermatoglyphics and Dental Anomalies in Three Different Regional Populations of India: An Original Study. J Forensic Dent Sci 2021. [DOI: 10.18311/jfds/13/1/2021.703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
Aim: The purpose of our study was to investigate and find the association of dental anomalies with the dermatoglyphic pattern within three regional populations of India. Methods: The present study included 600 subjects. 200 from each population were selected randomly and examined for dental anomalies and their dermatoglyphic patterns were recorded. Statistical Analysis Used: The study was analyzed by a chi-square test. Results: One dental anomaly was consistently noted in all three populations. Out of 600 subjects, 40.8% had positional anomalies. Shoveling, congenitally missing teeth, and winging were seen significantly in North-Eastern (23.0%), Jammu & Kashmir (5%), and Western Uttar Pradesh (6%) population groups in order. The most common dermatoglyphic pattern seen in all three populations was an ulnar loop. Significant relation between shoveling and whorl pattern was seen in the North-Eastern population. The presence of rotation was significantly more among subjects with a whorl pattern. Conclusion: The study concluded that dermatoglyphics can be used as an indicator of few dental anomalies. It can help in identifying the gender, race of an unidentified person, and various diseases which are correlated with dental anomalies that can be detected earlier.
Collapse
|
11
|
Chan GXL, Tan ELY, Chew MT, Wong HC, Foong KWC, Yow M. Prevalence of Class I, II and III skeletal relationships and its association with dental anomalies in an ethnic Chinese orthodontic population. PROCEEDINGS OF SINGAPORE HEALTHCARE 2021. [DOI: 10.1177/20101058211000779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objectives: To investigate the prevalence of skeletal Classes I, II and III in a Chinese orthodontic population, and determine its association with the prevalence of dental anomalies. Methods: This retrospective cross-sectional study was conducted on 2508 ethnic Chinese orthodontic patients aged 14 to 25 years who attended the Department of Orthodontics at the National Dental Centre Singapore. Radiographs, photographs and clinical records of the study sample were examined for the prevalence of dental anomalies in the permanent dentition, excluding third molars. The anteroposterior skeletal relationship was determined based on the A point–Nasion–B point angle measured from the lateral cephalogram, whereby Class I: A point–Nasion–B point = 3.6° ± 2.5° (1 standard deviation) that is 1.1° to 6.1°; Class II: A point–Nasion–B point greater than 6.1°; Class III: A point–Nasion–B point less than 1.1°. Logistic regression was used to determine the association between the anteroposterior skeletal relationship and the occurrence of various dental anomalies. Results: The prevalence of the anteroposterior skeletal relationship was: 49.5% Class I; 23.1% Class II; and 27.4% Class III. Class III patients had significantly lower odds of impacted teeth compared to Class I patients (odds ratio 0.608, 95% confidence interval 0.463–0.798; P=0.00009). There was no significant difference in the occurrence of the anomalies among the various anteroposterior skeletal types. Conclusions: The occurrence of impacted teeth was lower in Class III than Class I, while no significant differences were noted for hyperdontia, hypodontia, peg-shaped upper lateral incisors, transposition and double teeth. The occurrence of all investigated dental anomalies had no significant difference between Class II and Class I.
Collapse
Affiliation(s)
| | - Elaine Li Yen Tan
- Department of Orthodontics, National Dental Centre Singapore, Singapore
| | - Ming Tak Chew
- Department of Orthodontics, National Dental Centre Singapore, Singapore
| | - Hung Chew Wong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kelvin Weng Chiong Foong
- Discipline of Orthodontics and Paediatric Dentistry, National University of Singapore, Singapore
| | - Mimi Yow
- Department of Orthodontics, National Dental Centre Singapore, Singapore
| |
Collapse
|
12
|
Sivarajan S, Mani SA, John J, Fayed MMS, Kook YA, Wey MC. The global distribution of permanent canine hypodontia: A systematic review. Korean J Orthod 2021; 51:55-74. [PMID: 33446621 PMCID: PMC7837799 DOI: 10.4041/kjod.2021.51.1.55] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 09/13/2020] [Accepted: 09/16/2020] [Indexed: 11/10/2022] Open
Abstract
Objective To systematically review studies on canine agenesis prevalence in different populations and continents, based on the jaw, sex, location, and associated dental anomalies. Methods Electronic and hand searches of English literature in PubMed, Web of Science, Scopus, OpenGrey, and Science Direct were conducted, and the authors were contacted when necessary. Observational studies (population-based, hospital/clinic-based, and cross-sectional) were included. For study appraisal and synthesis, duplicate selection was performed independently by two reviewers. Study quality was assessed using a modified Strengthening the Reporting of Observational Studies in Epidemiology checklist, with main outcome of prevalence of canine agenesis. Results The global population prevalence of canine agenesis was 0.30% (0.0-4.7%), highest in Asia (0.54%), followed by Africa (0.33%), and the least in Europe and South America (0.19% in both continents). Canine agenesis was more common in the maxilla (88.57%), followed by both maxilla and mandible (8.57%), and the least common was mandible-only presentation (2.86%). The condition was more common in females (female:male ratio = 1.23), except in Asia (female:male ratio = 0.88) and Africa (female:male ratio = 1). In Asia, unilateral agenesis was almost twice as prevalent as bilateral, but in Europe, the bilateral form was more common. Conclusions The overall prevalence of canine agenesis is 0.30%, with the highest prevalence in Asia, followed by Africa, Europe, and South America. The condition is more common in the maxilla than the mandible, and in females than males (except in Asia and Africa), with unilateral agenesis being more common in Asia and the bilateral form showing a greater prevalence in Europe.
Collapse
Affiliation(s)
- Saritha Sivarajan
- Department of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Shani Ann Mani
- Department of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Jacob John
- Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Mona M Salah Fayed
- Department of Orthodontics, Faculty of Dentistry, Cairo University, Cairo, Egypt
| | - Yoon-Ah Kook
- Department of Dentistry, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Mang Chek Wey
- Department of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| |
Collapse
|
13
|
Nikolov Borić D, Radalj Miličić Z, Kranjčević Bubica A, Meštrović S. Prevalence and Pattern of Hypodontia among Croatian Orthodontic Patients. Acta Stomatol Croat 2020; 54:155-160. [PMID: 32801374 PMCID: PMC7362730 DOI: 10.15644/asc54/2/5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Objective The objective of this retrospective study was to assess the prevalence of hypodontia in the permanent dentition among Croatian orthodontic patients. The occurrence was evaluated concerning gender, specific missing teeth, the location, pattern of distribution in the maxillary and mandibular arches and sagittal and vertical skeletal pattern. Material and Methods The sample consisted of 194 patients (75 males and 119 females) from the Department of Orthodontics, Dental Clinic, Clinical Hospital Center Zagreb. Based on the severity of hypodontia the sample was divided into mild (1-2 missing teeth), moderate (3-5 missing teeth) and severe groups (6 or more missing teeth). The location of missing teeth was used to further divide the sample into anterior (intercanine region), posterior (premolars and molars) and anteroposterior groups. In addition, jaw localization of hypodontia was also considered. Results Permanent dentition hypodontia among Croatian orthodontic patients was found to be generally mild (80%), and a distribution was similar in the maxilla (39%) and the mandible (41%), as well as in the anterior and posterior segments of dental arch (44%). The number of missing teeth per person ranged from 1 to 12, with no significant difference between genders. The severity and location of hypodontia did not differ significantly between the genders, as well as in between the categories of sagittal and vertical skeletal patterns. Conclusion Present results suggest that the treatment plan for patients with hypodontia in permanent dentition should be individualized and adjusted for each case.
Collapse
Affiliation(s)
- Daša Nikolov Borić
- Postgraduate student, School of Dental Medicine, University of Zagreb, Croatia
| | | | | | - Senka Meštrović
- Department of Orthodontics, School of Dental Medicine, University of Zagreb, Croatia
| |
Collapse
|
14
|
Oral Rehabilitation of Hypodontia Patients Using an Endosseous Dental Implant: Functional and Aesthetic Results. J Clin Med 2019; 8:jcm8101687. [PMID: 31618898 PMCID: PMC6832447 DOI: 10.3390/jcm8101687] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 10/04/2019] [Accepted: 10/12/2019] [Indexed: 11/20/2022] Open
Abstract
Hypodontia often leads to limited bone availability of the alveolar ridges. Oral rehabilitation of severe hypodontia patients is challenging. In this retrospective study, we evaluated the functional and aesthetic results after dental implants in hypodontia patients, corroborated by Albrektsson implant success criteria. Over a period of 15 years (2000–2015), a total of 43 patients were diagnosed with hypodontia and 165 dental implants were inserted. Six patients who received 10 implants were lost in the follow-up. We examined 155 implants in 37 patients between December 2015 and May 2017. Besides family history, patients evaluated the general satisfaction, functionality, and aesthetics of the implants. Study subjects were between 17 and 44 years old (mean ± SD: 21.4 ± 5.6). Hypodontia patients were missing one to five teeth (n = 28), whereas patients diagnosed with oligodontia (≥6 missing teeth, n = 9). In this study, 24 patients (64.9%) with hypodontia had a positive family history; the remaining 13 patients had no family member with hypodontia. The final follow-up time ranged between 5 and 189 months after implant placement. Orthodontic treatment was performed in 32 patients (86%) before implant placement. Rehabilitation resulted in 62% of the cases being treated with 1–2 implants and 38% treated with 3–15 implants. However, out of 155 inserted dental implants, 18 implants failed to meet Albrektsson criteria, under which two implants were removed. Only autografts were used for bone augmentation with 97 implants. More than two-thirds of the patients showed high general satisfaction and masticatory function (69.4%) as well as phonetic ability (80.6%). The aesthetic outcome was rated as excellent by 17 patients (47.2%). The findings emphasize the importance of interdisciplinary treatment of hypodontia, leading to a satisfactory, functional, and long-term fixed prosthodontics using dental implants.
Collapse
|
15
|
Raziee L, Judd P, Carmichael R, Chen S, Sidhu N, Suri S. Impacts of oligodontia on oral health-related quality of life reported by affected children and their parents. Eur J Orthod 2019; 42:250-256. [DOI: 10.1093/ejo/cjz047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Summary
Background
Oligodontia (agenesis of six or more permanent teeth) affects functional, emotional, and social aspects of an individual’s life. Few published studies have evaluated oral health-related quality of life (OHRQoL) in children with oligodontia and very limited have compared the child and parental perceptions.
Methods
Thirty-five 8- to 18-year-old patients with oligodontia (10 M, 25 F; mean age: 12.4 ± 2.9 years; mean number of permanent teeth missing due to agenesis: 8.9 ± 3.2) recruited from The Hospital for Sick Children, Toronto, and Holland Bloorview Kids Rehabilitation Hospital, Toronto, and their parents completed the short format of Child Perception Questionnaire (CPQ11–14) and the Parent Child Perception Questionnaire, respectively.
Results
Children reported significantly worse overall CPQ score than their parents. Correlations between children’s and parents’ overall CPQ score, oral symptoms and functional limitations, and social well-being were not statistically significant. However, as children’s emotional well-being score increased, parents’ score also increased. There was no association between child CPQ score and age, gender, number, and location of permanent tooth agenesis in this sample. There was a significant correlation between overall CPQ score and Site-Specific Tooth Absences.
Conclusion
Children’s overall CPQ score and domain scores were significantly worse than their parents indicating that children with oligodontia had poorer OHRQoL compared to what was perceived by their parents.
Collapse
Affiliation(s)
- Leila Raziee
- Faculty of Dentistry, University of Toronto, Canada
| | - Peter Judd
- Department of Dentistry, The Hospital for Sick Children, Toronto, Canada
| | - Robert Carmichael
- Department of Dentistry, The Hospital for Sick Children, Toronto, Canada
- Holland Bloorview Kids Rehabilitation Hospital, Toronto, Canada
| | - Shiyi Chen
- Princess Margaret Hospital, Toronto, Canada
| | - Nicole Sidhu
- Department of Dentistry, The Hospital for Sick Children, Toronto, Canada
| | - Sunjay Suri
- Faculty of Dentistry, University of Toronto, Canada
- Department of Dentistry, The Hospital for Sick Children, Toronto, Canada
- Burlington Growth Centre, Faculty of Dentistry, University of Toronto, Canada
| |
Collapse
|
16
|
Chan GXL, Tan ELY, Chew MT, Wong HC, Foong KWC, Yow M. Secondary dentition characteristics in an ethnic Chinese orthodontic population: A retrospective cross-sectional study. JOURNAL OF INVESTIGATIVE AND CLINICAL DENTISTRY 2019; 10:e12421. [PMID: 31091018 DOI: 10.1111/jicd.12421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/05/2019] [Accepted: 03/28/2019] [Indexed: 12/16/2022]
Abstract
AIM To determine the prevalence of dental anomalies and its association with gender. METHODS This retrospective cross-sectional study was conducted using radiographs, photographs and clinical records of patients who attended the Department of Orthodontics at the National Dental Centre Singapore. Records of 2508 ethnic Chinese orthodontic patients aged 14-25 years were examined for the prevalence of dental anomalies in the permanent dentition, excluding third molars. Statistical analyses were performed using SAS version 9.4 (SAS Institute Inc.). Logistic regression was used to determine the association between gender and the occurrence of various dental anomalies. Kappa coefficients were calculated to test for intra-examiner reproducibility. Statistical significance was set at P < 0.05. RESULTS Prevalence of dental anomalies was 5.7% hyperdontia, 11.1% hypodontia, 5.5% peg-shaped upper lateral incisors, 21.9% impacted teeth, 1.3% transposition and 0.4% double teeth. There was no significant gender difference in the occurrence of the anomalies except hyperdontia, with males having significantly higher odds of hyperdontia compared with females (odds ratio, 1.488; 95% confidence interval, 1.062-2.085; P = 0.021). CONCLUSION Occurrence of hyperdontia is greater in males than females, while no significant gender differences were noted for hypodontia, peg-shaped upper lateral incisors, impacted teeth, transposition and double teeth.
Collapse
Affiliation(s)
- Grace X L Chan
- Department of Orthodontics, National Dental Centre Singapore, Singapore
| | - Elaine L Y Tan
- Department of Orthodontics, National Dental Centre Singapore, Singapore
| | - Ming T Chew
- Department of Orthodontics, National Dental Centre Singapore, Singapore
| | - Hung C Wong
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Kelvin W C Foong
- Discipline of Orthodontics and Pediatric Dentistry, Faculty of Dentistry, National University of Singapore, Singapore
| | - Mimi Yow
- Department of Orthodontics, National Dental Centre Singapore, Singapore
| |
Collapse
|
17
|
Roslan AA, Rahman NA, Alam MK. Dental anomalies and their treatment modalities/planning in orthodontic patients. J Orthod Sci 2018; 7:16. [PMID: 30271761 PMCID: PMC6144762 DOI: 10.4103/jos.jos_37_18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE This study was carried to study the prevalence of dental anomalies and treatment modalities/planning among the orthodontic patients. MATERIALS AND METHODS A total of 370 orthodontic records including their pre-treatment orthopantomographs (OPG) and study models of orthodontic patients in permanent dentition who attended dental clinic were assessed for impaction, hypodontia, supernumerary, supraocclusion, infraocclusion, and any other anomalies excluding the third molars. The association of anomalies with gender status and racial status was analyzed using Pearson's Chi-square test. A P value of <0.05 is considered as significant. The confidence interval at 95% (CI) was set. RESULTS Among the 370 subjects, 105 (28.4%) presented with at least one anomaly. Eighty-five (23%) demonstrated a single anomaly and 20 (5.4%) with more than one anomaly. The most prevalent anomaly was impaction (14.32%), followed by hypodontia (7.03%). The less common anomalies were microdontia (1.08%), dilacerations (0.27%), and generalised enamel hypoplasia (0.27%). Maxillary right lateral incisors and canines were the most common affected teeth and these are located on the maxillary right quadrant. It was evident that dental anomalies were statistically dependant on race (P = 0.025), but independent of gender. The most common treatment planned for these patients was fixed appliance. CONCLUSIONS Impaction was predominant among 28.4% subjects observed with anomaly and most patients with anomaly are treated with fixed appliances (49%). CLINICAL RELEVANCE These anomalies play a great role in occlusion and alignment in treatment planning and relapse for orthodontic treatment.
Collapse
Affiliation(s)
- Anis A Roslan
- Orthodontic Unit, School of Dental Sciences, Health Campus, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Norma Ab Rahman
- Orthodontic Unit, School of Dental Sciences, Health Campus, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Mohammad K Alam
- Department of Orthodontic, College of Dentistry, Jouf University, Sakaka, Kingdom of Saudi Arabia
| |
Collapse
|
18
|
Prevalence of dental anomalies in French orthodontic patients: A retrospective study. Arch Pediatr 2018; 25:426-430. [PMID: 30249487 DOI: 10.1016/j.arcped.2018.07.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 06/05/2018] [Accepted: 07/15/2018] [Indexed: 11/24/2022]
Abstract
OBJECTIVES To investigate the prevalence and gender distributions of dental anomalies in French orthodontic patients. MATERIAL AND METHODS A retrospective review of the dental files of orthodontic patients was conducted to investigate the frequencies of dental anomalies. Pretreatment intraoral photographs and panoramic radiographs were analyzed. The occurrence rates of various dental anomalies (as determined by the numbers, shapes, structures, exfoliations, and eruptions of teeth) were calculated as percentages and differences in gender distribution using Chi2 and Fisher tests. RESULTS Five hundred fifty-one patients receiving orthodontic treatment between 2003 and 2013 at a French hospital were included in the study: 45.74% of the patients (n=252) presented at least one dental anomaly. Taurodontism was the most common (15.06%), followed by ectopic eruption (11.43%). Odontoma, macrodontia, fusion, gemination, talon cusp, dentinogenesis imperfecta, regional odontodysplasia, premature tooth eruption, and premature exfoliation were not found. No statistically significant correlations were found between gender and the occurrence of dental anomalies. CONCLUSION French orthodontic patients exhibit a high rate of dental anomalies, indicating that dental anomalies should be carefully considered in the orodental management of French patients.
Collapse
|
19
|
Associations between tooth agenesis and displaced maxillary canines: a cross-sectional radiographic study. Prog Orthod 2018; 19:23. [PMID: 30027405 PMCID: PMC6053345 DOI: 10.1186/s40510-018-0226-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/23/2018] [Indexed: 11/29/2022] Open
Abstract
Background The aim of present study was to test the association between hypodontia and displaced maxillary canine when compared with a control group. Methods The study group was composed of 336 subjects with a mean age of 10.7 ± 1.2 years, presenting with at least one missing tooth. Exclusion criteria included syndromes, craniofacial malformations, extractions and trauma history and previous orthodontic treatment. The control group consisted of 336 subjects with a mean age of 10.7 ± 1.2 years, without agenesis. Stepwise multiple logistic regression using the backwards elimination and the Wald test method was performed to identify the best combination of hypodontia and displaced maxillary canine (P < 0.05). Results The most represented category in study group consisted in mild agenesis (86.9%); moderate and severe agenesis groups respectively represented the 11.7 and 1.4% of study group. Agenesis was diagnosed in both arches in 46 subjects. Maxillary hypodontia and mandibular hypodontia was respectively detected in 156 and 134 subjects. The most frequent missing teeth were mandibular second premolars (45.8%), lateral incisors (41.7%) and maxillary second premolars (17.8%). A significant correlation between agenesis and displaced maxillary canine was observed in the study group (P < 0.05). Only the agenesis of maxillary lateral incisors remained in the final model during backward stepwise deletion. Significant association between the severity of dental agenesis and prevalence of displaced maxillary canine was not assessed. Conclusions The outcomes revealed no difference related to the severity of dental agenesis and prevalence of displaced maxillary canine. Only the agenesis of maxillary lateral incisors should be considered directly connected with displaced maxillary canine. Electronic supplementary material The online version of this article (10.1186/s40510-018-0226-0) contains supplementary material, which is available to authorized users.
Collapse
|
20
|
Dallel I, Marwen W, Ben Abdallah S, Tobji S, Ben Amor A, Canal P. L’agénésie des incisives latérales supérieures : étude d’une population orthodontique et illustration clinique. Int Orthod 2018; 16:384-407. [DOI: 10.1016/j.ortho.2018.03.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
21
|
Sejdini M, Çerkezi S. Dental Number Anomalies and Their Prevalence According To Gender and Jaw in School Children 7 To 14 Years. Open Access Maced J Med Sci 2018; 6:867-873. [PMID: 29875863 PMCID: PMC5985881 DOI: 10.3889/oamjms.2018.174] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 03/23/2018] [Accepted: 03/24/2018] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES This study aimed to find the prevalence of Hypodontia and Hyperdontia in different ethnicities in patients from 7 to 14 years old. MATERIAL AND METHODS A group of 520 children were included aged 7 to 14 years, only the children who went to primary schools. Controls were performed by professional people to preserve the criteria of orthodontic abnormalities evaluation. The data were recorded in the individual card specially formulated for this research and all the patients suspected for hypodontia and hyperdontia the orthopantomography for confirmation was made. The data were analysed using descriptive statistical analysis using χ2 test for the significant difference for p ˂ 0.05 and Fisher test for p < 0.05. RESULTS Hypodontia, not counting the patients with missing third molars was found in 18 patients researched or 3.46%. The most commonly missing teeth were the second lower premolars, the second upper premolars, second upper lateral incisors followed by the lower incisors. Hyperdontia not including the third molars was found in 4 cases of the participants or 0.76% from which the most frequent atypical tooth mesiodens and one case of bilateral hypodontia of a lateral upper incisor with typical shape and size. But there were no significant differences when tested between genders and jaws. CONCLUSION The prevalence we found is similar to the prevalence in the region. Our findings indicate that there is a difference between the genders in the prevalence of hypodontia, but without statistical significance, while for hyperdontia we can't see such a difference between the sexes.
Collapse
Affiliation(s)
- Milaim Sejdini
- Clinic of Orthodontics, University Clinic of Dentistry, Medical Faculty, University of Prishtina, Prishtina, Kosovo
| | - Sabetim Çerkezi
- Faculty of Medical Sciences, State University of Tetovo, Tetovo, Republic of Macedonia
| |
Collapse
|
22
|
Torres FC, de Freitas CF, Pereira DV, Triviño T, Fuziy A, Maeda FA. Agenesis of all permanent maxillary incisors: A rare clinical case with an interdisciplinary solution. J Clin Exp Dent 2018; 10:e402-e407. [PMID: 29750104 PMCID: PMC5937968 DOI: 10.4317/jced.54698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 03/14/2018] [Indexed: 11/05/2022] Open
Abstract
Background Clinical cases involving agenesis of all four maxillary incisors are rare, with no previous reports in the literature. Case report The present case report describes an orthodontic treatment combined with esthetic dentistry in a 10-year-old girl with agenesis of all four permanent maxillary incisors, anterior crossbite, permanence of deciduous maxillary canines and transmigration of permanent maxillary canines into the region of the maxillary central incisors. For this case, it was decided on space closure using a fixed orthodontic apparatus and reshaping of the first premolars transforming them into canines. Porcelain veneers were used on the permanent and deciduous canines, substituting the maxillary central and lateral incisors, respectively. Regarding outcome, there was an improvement in facial profile, correction of the anterior crossbite, satisfactory intercuspidation of the teeth and significant esthetic improvement in smile. Maintaining the patient´s natural dentition also kept the bone plate intact for future placement of implants to substitute maxillary deciduous canines at the appropriate age. Conclusions Interdisciplinary planning combining orthodontics and esthetic dentistry was key in resolving this case. Key words:Tooth agenesis, upper incisors, orthodontic treatment.
Collapse
Affiliation(s)
- Fernando-Cesar Torres
- DDS, MSc, PhD. Associate Professor Doctor of the Master's program in Odontology, University of São Paulo City (UNICID), São Paulo, Brazil
| | - Claudio-Fróes de Freitas
- DDS, MSc, PhD. Head Professor of the Master's program in Odontology, University of São Paulo City (UNICID), Brazil
| | - Diego-Vianez Pereira
- DDS, MSc, PhD. Head Professor of the Master's program in Odontology, University of São Paulo City (UNICID), Brazil
| | - Tarcila Triviño
- DDS, MSc, PhD. Associate Professor Doctor of the Master's program in Odontology, University of São Paulo City (UNICID), São Paulo, Brazil
| | - Acácio Fuziy
- DDS, MSc, PhD. Associate Professor Doctor of the Master's program in Odontology, University of São Paulo City (UNICID), São Paulo, Brazil
| | - Fernando-Akio Maeda
- DDS, MSc, PhD. Associate Professor Doctor of the Master's program in Odontology, University of São Paulo City (UNICID), São Paulo, Brazil
| |
Collapse
|
23
|
Dallel I, Marwen W, Ben Abdallah S, Tobji S, Ben Amor A, Canal P. Agenesis of the upper lateral incisors: Study of an orthodontic population and clinical illustration. Int Orthod 2018; 16:384-407. [PMID: 29650346 DOI: 10.1016/j.ortho.2018.03.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In his daily practice, the orthodontist is regularly asked to treat patients with one or more missing teeth. Considering their functional and esthetic specificities, and the relatively high frequency of agenesia, our interest was to focus on the permanent lateral upper incisors. Our study, based on an orthodontic population including 1000 patients, shows that about 7.8% of these patients present agenesis of at least one permanent tooth (out of which 3.6% are agenesis of the upper lateral incisor). Treatment options for these cases are multiple with several decisional factors to consider: the solutions often lead to compromises, and require a multidisciplinary coordination. Therefore, the purpose of this article, was to describe the prevalence of these agenesia based on a retrospective study, and to present two clinical cases: the first case is a bilateral agenesis of the maxillary lateral incisors treated with space opening in order to place two implant-supported restorations. The second case is an agenesis of tooth 12 treated with space reopening and the placement of a cantilever bridge. These clinical cases are presented to illustrate the multidisciplinary approach involving orthodontics, prosthodontics, and periodontology, in order to achieve the most esthetic and functional results possible.
Collapse
Affiliation(s)
- Inès Dallel
- Laboratory of Research in Oral Health and Orofacial Rehabilitation, LR12, ES11, University of Monastir, Faculty of Dental Medicine, Vicenne Avenue, 5000 Monastir, Tunisia.
| | - Wiem Marwen
- Laboratory of Research in Oral Health and Orofacial Rehabilitation, LR12, ES11, University of Monastir, Faculty of Dental Medicine, Vicenne Avenue, 5000 Monastir, Tunisia
| | - Sofiene Ben Abdallah
- Laboratory of Research in Oral Health and Orofacial Rehabilitation, LR12, ES11, University of Monastir, Faculty of Dental Medicine, Vicenne Avenue, 5000 Monastir, Tunisia
| | - Samir Tobji
- Laboratory of Research in Oral Health and Orofacial Rehabilitation, LR12, ES11, University of Monastir, Faculty of Dental Medicine, Vicenne Avenue, 5000 Monastir, Tunisia
| | - Adel Ben Amor
- Laboratory of Research in Oral Health and Orofacial Rehabilitation, LR12, ES11, University of Monastir, Faculty of Dental Medicine, Vicenne Avenue, 5000 Monastir, Tunisia
| | - Pierre Canal
- Department of Orthodontics, Dental Faculty, University of Montpellier, 545, avenue Jean-Louis-Viala, 34080 Montpellier, France
| |
Collapse
|
24
|
Rakhshan V, Rakhshan A. Systematic review and meta-analysis of congenitally missing permanent dentition: Sex dimorphism, occurrence patterns, associated factors and biasing factors. Int Orthod 2016; 14:273-94. [PMID: 27522615 DOI: 10.1016/j.ortho.2016.07.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
PURPOSE We aimed to summarize/analyze, comprehensively and for the first time, the literature on the prevalence of congenitally missing teeth (CMT) in males and females and the CMT pattern, taking various associated and biasing factors into account. METHODS A search was performed independently by two authors during September 2012 till June 2013 to find all the available literature regarding CMT-associated factors and patterns comprising sex dimorphism, arches, anterior/posterior regions, unilateral/bilateral patterns, and involved teeth. The data were statistically analyzed. RESULTS Seventy-four studies were included. The mean CMT prevalence was 6.42±2.76% in males and 7.55±2.67% in females. Overall, CMT is more prevalent in females but only in epidemiological samples, and not in orthodontic or dental patients. Enrolling orthodontic/dental patients might increase the observed CMT in boys and/or reduce it in girls. Gender dimorphism was not affected by any of the factors: time, regions, or the biasing factors. There is not a significant predominance of maxillary or mandibular involvement, although the anterior segment is more likely to be affected. CONCLUSIONS CMT is more common in girls and in the anterior segment, regardless of the date of publication. Contrary to the commonly held belief regarding more CMT prevalence in female orthodontic patients, it was shown that in dental/orthodontic patients, CMT prevalence is higher in boys.
Collapse
Affiliation(s)
- Vahid Rakhshan
- Department of dental anatomy and morphology, dental school, Azad university, Tehran, Iran.
| | | |
Collapse
|
25
|
Affiliation(s)
- Vahid Rakhshan
- Department of dental anatomy and morphology, dental school, Azad university, Tehran, Iran.
| | | |
Collapse
|
26
|
Bayome M, Kook YA, Kim Y, Lee CW, Park JH. Implants for orthodontic patients with missing anterior teeth: Placement in growing patients—Immediate loading. Semin Orthod 2016. [DOI: 10.1053/j.sodo.2015.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
27
|
Prevalence of concomitant hypo-hyperdontia in a group of Turkish orthodontic patients. Eur Arch Paediatr Dent 2016; 17:53-7. [DOI: 10.1007/s40368-015-0201-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 07/29/2015] [Indexed: 10/23/2022]
|
28
|
Pedreira FRDO, de Carli ML, Pedreira RDPG, Ramos PDS, Pedreira MR, Robazza CRC, Hanemann JAC. Association between dental anomalies and malocclusion in Brazilian orthodontic patients. J Oral Sci 2016; 58:75-81. [DOI: 10.2334/josnusd.58.75] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Fernanda R. de O. Pedreira
- Department of Clinic and Surgery, School of Dentistry, Federal University of Alfenas
- Marcelo Pedreira Orthodontic Institute
| | - Marina L. de Carli
- Department of Clinic and Surgery, School of Dentistry, Federal University of Alfenas
| | - Renato do P. G. Pedreira
- Department of Clinic and Surgery, School of Dentistry, Federal University of Alfenas
- Marcelo Pedreira Orthodontic Institute
| | | | | | | | | |
Collapse
|
29
|
Kambalimath HV, Jain S, Patil RU, Asokan A, Kambalimath D. Permanent Maxillary Canine Agenesis: A Rare Case Report. Int J Clin Pediatr Dent 2015; 8:242-6. [PMID: 26604546 PMCID: PMC4647049 DOI: 10.5005/jp-journals-10005-1322] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 04/08/2015] [Indexed: 11/27/2022] Open
Abstract
Congenitally missing teeth (CMT) are among one of the commonly known dental anomalies. The most frequently missing teeth in the permanent dentition, excluding the third molars, are mandibular second premolars and maxillary lateral incisors. Exclusive agenesis of both maxillary canines is an extremely rare occurrence and only a few cases have been reported. Previous studies showed that the prevalence of maxillary canine agenesis varies between 0.07 and 0.13%. In recent studies on Indian population, no cases of maxillary canine agenesis have been documented. This paper reports a case of non-syndromic bilateral agenesis of permanent maxillary canines, along with agenesis of both mandibular central incisors in a healthy 13-year-old Indian female patient; and a brief literature review on prevalence, etiology and treatment modalities of the condition. How to cite this article: Kambalimath HV, Jain S, Patil RU, Asokan A, Kambalimath D. Permanent Maxillary Canine Agenesis: A Rare Case Report. Int J Clin Pediatr Dent 2015; 8(3):242-246.
Collapse
Affiliation(s)
- Halaswamy V Kambalimath
- Professor and Head, Department of Pedodontics and Preventive Dentistry Rishiraj College of Dental Science and Research Centre Bhopal, Madhya Pradesh, India
| | - Somya Jain
- Postgraduate Student, Department of Pedodontics and Preventive Dentistry Rishiraj College of Dental Science and Research Centre Bhopal, Madhya Pradesh, India
| | - Raju Umaji Patil
- Reader, Department of Pedodontics and Preventive Dentistry Rishiraj College of Dental Science and Research Centre Bhopal, Madhya Pradesh, India
| | - Alexander Asokan
- Senior Lecturer, Department of Pedodontics and Preventive Dentistry Rishiraj College of Dental Science and Research Centre Bhopal, Madhya Pradesh, India
| | - Deepashri Kambalimath
- Senior Lecturer, Department of Oral and Maxillofacial Surgery, Rishiraj College of Dental Science and Research Centre, Bhopal, Madhya Pradesh, India
| |
Collapse
|
30
|
Khalaf K, Miskelly J, Voge E, Macfarlane TV. Prevalence of hypodontia and associated factors: a systematic review and meta-analysis. J Orthod 2015; 41:299-316. [PMID: 25404667 DOI: 10.1179/1465313314y.0000000116] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVES To determine the prevalence and factors associated with hypotonia. DESIGN Systematic review and meta-analysis. DATA SOURCE A search strategy was developed along with inclusion criteria and run in MEDLINE and EMBASE (published from 2002 to August 2012) databases to reveal all studies on the prevalence of hypodontia or associated factors. A hand search of reference lists and a Google search aimed to improve the sensitivity of the literature search. SELECTION CRITERIA All studies on the prevalence of hypodontia or associated factors published from 2002 onwards were included. Abstracts of non-English papers were also analyzed. DATA SELECTION AND EXTRACTION All potential articles were checked against the inclusion criteria independently, and in duplicate by two investigators. A checklist was used to assess the quality of selected studies. MAIN OUTCOME Prevalence of hypodontia, excluding third molars. RESULTS The overall prevalence of hypodontia was found to be 6.4% (95% CI: 5.7, 7.2). There was a statistically significant difference in the prevalence of hypodontia by continent (Q = 34.18, P<0.001). Prevalence of hypodontia was the highest in Africa: 13.4% (95% CI: 9.7, 18.0), followed by Europe (7% CI: 6.0-8.0%), Asia (6.3% CI: 4.4, 9.1) and Australia (6.3% CI: 5.3, 7.4) with a lower prevalence in North America (5.0% CI: 4.1-5.9) and Latin America and Caribbean (4.4% CI: 3.2-6.1). Females were found to have a higher prevalence than males (combined OR 1.22; 95% CI: 1.14, 1.30). The most commonly affected teeth were mandibular second premolars followed by maxillary lateral incisors and maxillary second premolars. The prevalence of mild, moderate and severe hypodontia was found to be 81.6, 14.3 and 3.1% respectively. CONCLUSIONS There was a high variation in the prevalence of hypodontia between the studies. African populations were found to have a higher risk for tooth agenesis and there was an increased risk for females to have hypodontia than males.
Collapse
Affiliation(s)
- Khaled Khalaf
- University of Aberdeen Dental School and Hospital, Aberdeen, Aberdeenshire, UK
| | - John Miskelly
- University of Aberdeen Dental School and Hospital, Aberdeen, Aberdeenshire, UK
| | - Elena Voge
- University of Aberdeen Dental School and Hospital, Aberdeen, Aberdeenshire, UK
| | | |
Collapse
|
31
|
Gökkaya B, Motro M, Kargül B. Prevalence and characteristics of non-syndromic hypodontia among Turkish orthodontic patient population. J Int Soc Prev Community Dent 2015; 5:170-5. [PMID: 26236675 PMCID: PMC4515798 DOI: 10.4103/2231-0762.159952] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background: Hypodontia is often used as a collective term for congenital absence of primary or secondary teeth, although specifically it describes the absence of one to six teeth excluding third molars. The prevalence of hypodontia varies from 0.03 to 10.1% in various populations. Materials and Methods: In this retrospective study, we reviewed the records of Turkish orthodontic patients treated between 1994 and 2003. A total of 1236 orthodontic patients (507 girls, 729 boys) were included in this study. The age of the patients ranged from 11 to 20 years. Data were collected and entered into the SPSS 20 program for statistical analysis. The Chi-square test was used to analyze differences in the distribution of hypodontia, sex, and malocclusion type. Results: In the total sample of 1236 patients who were orthodontically treated, hypodontia was found in 82 children, including 45 girls and 37 boys. The prevalence of hypodontia was 7%. Patients with more severe hypodontia showed a tendency to exhibit a class II relationship. The mandibular second premolar were the most commonly missing teeth in 48 girls and 26 boys. Conclusion: Hypodontia may lead to some clinical problems including malocclusions, esthetic and functional complaints, and also psychological problems. All cases should be evaluated by an interdisciplinary approach for appropriate treatment choice. Our data emphasize the importance of detailed and careful radiographic examination. This helps in long-term and effective treatment planning according to a child's individual requirements.
Collapse
Affiliation(s)
- Berna Gökkaya
- Department of Pediatric Dentistry, Dental School, Marmara University, Istanbul, Turkey
| | - Melih Motro
- Department of Orthodontics, Dental School, Marmara University, Istanbul, Turkey
| | - Betül Kargül
- Department of Pediatric Dentistry, Dental School, Marmara University, Istanbul, Turkey
| |
Collapse
|
32
|
Borzabadi-Farahani A, Zadeh HH. Adjunctive Orthodontic Applications in Dental Implantology. J ORAL IMPLANTOL 2015; 41:501-8. [DOI: 10.1563/aaid-joi-d-13-00235] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Implant placement is often necessitated for replacement of teeth with pathologically damaged alveolar bone due to periodontitis or traumatic injury. Surgical augmentation of resorbed bone has many limitations, including lower efficacy of vertical augmentation than horizontal augmentation, as well as morbidity associated with grafting procedure. Orthodontic therapy has been proposed as a useful method for augmenting the resorbed alveolar bone and reforming aesthetically appealing gingival margin, prior to implant placement. This narrative review summarizes the available evidence for the application of orthodontic strategies that can be used as adjunct in selected cases to augment bone volume for the future implant site and maintain space for the prosthetic parts of the implant. These are (1) orthodontic extrusion of compromised teeth to generate vertical bone volume and enhance gingival architecture, (2) tooth preservation and postponing orthodontic space opening to maintain bone volume in future implant site, (3) orthodontic implant site switching to eliminate the deficient bone volume or risky implant sites, and (4) the provision of a rigid fixed-bonded retainer to maintain the implant site. Although there are no randomized controlled clinical trials to evaluate the efficacy of orthodontic therapy for implant site development, clinical case reports and experience document the efficacy of orthodontic therapy for this application.
Collapse
Affiliation(s)
- Ali Borzabadi-Farahani
- Orthodontics, Warwick Dentistry, Warwick Medical School, University of Warwick, Coventry, UK, and NHS England, UK
| | - Homayoun H. Zadeh
- Laboratory for Immunoregulation and Tissue Engineering, Division of Periodontology, Diagnostic Sciences and Dental Hygiene, University of Southern California, Los Angeles, Calif
| |
Collapse
|
33
|
Prevalence and patterns of tooth agenesis in Angle Class II Division 2 malocclusion in Japan. Am J Orthod Dentofacial Orthop 2015; 148:123-9. [DOI: 10.1016/j.ajodo.2015.02.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 02/01/2015] [Accepted: 02/01/2015] [Indexed: 11/15/2022]
|
34
|
Rakhshan V, Rakhshan H. Meta-analysis and systematic review of the number of non-syndromic congenitally missing permanent teeth per affected individual and its influencing factors. Eur J Orthod 2015; 38:170-7. [PMID: 25840586 DOI: 10.1093/ejo/cjv008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND AND PURPOSE Dental aplasia (or hypodontia) is a frequent and challenging anomaly and thus of interest to many dental fields. Although the number of missing teeth (NMT) in each person is a major clinical determinant of treatment need, there is no meta-analysis on this subject. Therefore, we aimed to investigate the relevant literature, including epidemiological studies and research on dental/orthodontic patients. METHODS Among 50 reports, the effects of ethnicities, regions, sample sizes/types, subjects' minimum ages, journals' scientific credit, publication year, and gender composition of samples on the number of missing permanent teeth (except the third molars) per person were statistically analysed (α = 0.05, 0.025, 0.01). LIMITATIONS The inclusion of small studies and second-hand information might reduce the reliability. Nevertheless, these strategies increased the meta-sample size and favoured the generalisability. Moreover, data weighting was carried out to account for the effect of study sizes/precisions. RESULTS The NMT per affected person was 1.675 [95% confidence interval (CI) = 1.621-1.728], 1.987 (95% CI = 1.949-2.024), and 1.893 (95% CI = 1.864-1.923), in randomly selected subjects, dental/orthodontic patients, and both groups combined, respectively. The effects of ethnicities (P > 0.9), continents (P > 0.3), and time (adjusting for the population type, P = 0.7) were not significant. Dental/orthodontic patients exhibited a significantly greater NMT compared to randomly selected subjects (P < 0.012). Larger samples (P = 0.000) and enrolling younger individuals (P = 0.000) might inflate the observed NMT per person. CONCLUSIONS Time, ethnic backgrounds, and continents seem unlikely influencing factors. Subjects younger than 13 years should be excluded. Larger samples should be investigated by more observers.
Collapse
Affiliation(s)
- Vahid Rakhshan
- *Iranian Tissue Bank and Research Centre, Tehran University of Medical Sciences, **Department of Dental Anatomy and Morphology, Dental Branch, Islamic Azad University, Tehran, Iran and
| | | |
Collapse
|
35
|
Sharma PK, Sharma P. Interdisciplinary management of congenitally absent maxillary lateral incisors: Orthodontic/prosthodontic perspectives. Semin Orthod 2015. [DOI: 10.1053/j.sodo.2014.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
36
|
Abstract
Oligodontia, or agenesis of six or more teeth, excluding third molars, which involves canine agenesis is rare, and restorative management can be challenging. Bilateral agenesis of a permanent canine in the general population often indicates a several missing adult teeth. The most common sign of it is the primary canine retention beyond its exfoliation age. The multistage restorative management includes the early diagnosis, excluding associated medical problems as well as assessment of patient's malocclusion and facial skeletal pattern, life span of deciduous teeth, possibility of premolar substitution, minimum required number of prosthetic units, patient's preferences, and the cost of treatment. A 10-year-old boy with bilateral agenesis of maxillary permanent canines is described. Some thoughts on the multidisciplinary restorative management of this case are discussed.
Collapse
Affiliation(s)
- Ali Borzabadi-Farahani
- Warwick Dentistry, Warwick Medical School, University of Warwick, Coventry, United Kingdom
| |
Collapse
|
37
|
Nakayama Y, Baba Y, Tsuji M, Fukuoka H, Ogawa T, Ohkuma M, Moriyama K. Dentomaxillofacial characteristics of ectodermal dysplasia. Congenit Anom (Kyoto) 2015; 55:42-8. [PMID: 25181309 DOI: 10.1111/cga.12073] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Accepted: 06/23/2014] [Indexed: 11/29/2022]
Abstract
The aim of this retrospective hospital-based study was to elucidate the dentomaxillofacial characteristics of ectodermal dysplasia. Six Japanese individuals (one male and five female; age range, 12.7-27.2 years) underwent comprehensive examinations, including history recording, cephalometric analysis, panoramic radiography, and analysis of dental models. All the subjects had two or more major manifestations for clinical diagnosis of ectodermal dysplasia (e.g., defects of hair, teeth, nails, and sweat glands). They presented hypodontia (mean number of missing teeth, 9.5; range, 5-14), especially in the premolar region, and enamel dysplasia. Five subjects had bilateral molar occlusion, whereas one subject had unilateral molar occlusion. The common skeletal features were small facial height, maxillary hypoplasia, counterclockwise rotation of the mandible, and mandibular protrusion. Interestingly, the maxillary first molars were located in higher positions and the upper anterior facial height was smaller than the Japanese norm. The results suggest that vertical and anteroposterior maxillary growth retardation, rather than lack of occlusal support due to hypodontia, leads to reduced anterior facial height in individuals with ectodermal dysplasia.
Collapse
Affiliation(s)
- Yumiko Nakayama
- Maxillofacial Orthognathics, Department of Maxillofacial Reconstruction and Function, Division of Maxillofacial/Neck Reconstruction, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | | | | | | | | | | | | |
Collapse
|
38
|
Rakhshan V. Congenitally missing teeth (hypodontia): A review of the literature concerning the etiology, prevalence, risk factors, patterns and treatment. Dent Res J (Isfahan) 2015; 12:1-13. [PMID: 25709668 PMCID: PMC4336964 DOI: 10.4103/1735-3327.150286] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Congenitally missing teeth (CMT), or as usually called hypodontia, is a highly prevalent and costly dental anomaly. Besides an unfavorable appearance, patients with missing teeth may suffer from malocclusion, periodontal damage, insufficient alveolar bone growth, reduced chewing ability, inarticulate pronunciation and other problems. Treatment might be usually expensive and multidisciplinary. This highly frequent and yet expensive anomaly is of interest to numerous clinical, basic science and public health fields such as orthodontics, pediatric dentistry, prosthodontics, periodontics, maxillofacial surgery, anatomy, anthropology and even the insurance industry. This essay reviews the findings on the etiology, prevalence, risk factors, occurrence patterns, skeletal changes and treatments of congenitally missing teeth. It seems that CMT usually appears in females and in the permanent dentition. It is not conclusive whether it tends to occur more in the maxilla or mandible and also in the anterior versus posterior segments. It can accompany various complications and should be attended by expert teams as soon as possible.
Collapse
Affiliation(s)
- Vahid Rakhshan
- Iranian Tissue Bank and Research Center, Tehran University of Medical Sciences, Department of Dental Anatomy and Morphology, Dental Branch, Islamic Azad University, Tehran, Iran
| |
Collapse
|
39
|
Hedayati Z, Dashlibrun YN. The prevalence and distribution pattern of hypodontia among orthodontic patients in Southern Iran. Eur J Dent 2014; 7:S078-S082. [PMID: 24966733 PMCID: PMC4054084 DOI: 10.4103/1305-7456.119080] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objectives: To evaluate the pattern and prevalence of hypodontia and its association with different malocclusions among orthodontic patients in southern Iran. Materials and Methods: In this study, a total of 494 records of orthodontic patients (162 males, 332 females) were evaluated. To investigate percent of hypodontia pertinent information of patients was evaluated. Chi-square and Fisher's exact tests were used for statistical analysis. Results: The prevalence of tooth agenesis was 7.66%. Thirty-eight patients were found to have at least one tooth missing. Number of patients having hypodontia was the most in class III patients, whereas the number of missing teeth was more in class II sample. However, it was not statistically significant (P = 0.569). Upper lateral incisor (27.95%), lower second premolar (21.51%), and upper first premolar (12.9%) were respectively the most frequently absent teeth. There was not statistically significant difference between sexes (P = 0.580). Hypodontia observed to be more bilaterally, in the upper arch and in the left side. Conclusion: The pattern and prevalence of hypodontia is different among races and ethnic groups. In our study population, hypodontia was found to be 7.66%. Higher prevalence of hypodontia in the maxillary arch and in class III patients may be considered as an etiologic factor.
Collapse
Affiliation(s)
- Zohreh Hedayati
- Orthodontic Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Yunes Nazari Dashlibrun
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
40
|
Hypodontia: Prevalence and pattern amongst the living Druze population – A Near Eastern genetic isolate. HOMO-JOURNAL OF COMPARATIVE HUMAN BIOLOGY 2014; 65:201-13. [DOI: 10.1016/j.jchb.2014.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 03/05/2014] [Indexed: 11/19/2022]
|
41
|
Rakhshan V. Meta-analysis and systematic review of factors biasing the observed prevalence of congenitally missing teeth in permanent dentition excluding third molars. Prog Orthod 2013; 14:33. [PMID: 24325806 PMCID: PMC4384895 DOI: 10.1186/2196-1042-14-33] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 07/05/2013] [Indexed: 11/17/2022] Open
Abstract
No meta-analyses or systematic reviews have been conducted to evaluate numerous potential biasing factors contributing to the controversial results on congenitally missing teeth (CMT). We aimed to perform a rather comprehensive meta-analysis and systematic review on this subject. A thorough search was performed during September 2012 until April 2013 to find the available literature regarding CMT prevalence. Besides qualitatively discussing the literature, the meta-sample homogeneity, publication bias, and the effects of sample type, sample size, minimum and maximum ages of included subjects, gender imbalances, and scientific credit of the publishing journals on the reported CMT prevalence were statistically analyzed using Q-test, Egger regression, Spearman coefficient, Kruskal-Wallis, Welch t test (α=0.05), and Mann-Whitney U test (α=0.016, α=0.007). A total of 111 reports were collected. Metadata were heterogeneous (P=0.000). There was not a significant publication bias (Egger Regression P=0.073). Prevalence rates differed in different types of populations (Kruskal-Wallis P=0.001). Studies on orthodontic patients might report slightly (about 1%) higher prevalence (P=0.009, corrected α=0.016). Non-orthodontic dental patients showed a significant 2% decline [P=0.007 (Mann-Whitney U)]. Enrolling more males in researches might significantly reduce the observed prevalence (Spearman ρ=-0.407, P=0.001). Studies with higher minimums of subjects' age showed always slightly less CMT prevalence. This reached about -1.6% around the ages 10 to 13 and was significant for ages 10 to 12 (Welch t test P<0.05). There seems to be no limit over the maximum age (Welch t test P>0.2). Studies' sample sizes were correlated negatively with CMT prevalence (ρ=-0.250, P=0.009). It was not verified whether higher CMT rates have better chances of being published (ρ=0.132, P=0.177). CMT definition should be unified. Samples should be sex-balanced. Enrolling both orthodontic and dental patients in similar proportions might be preferable over sampling from each of those groups. Sampling from children over 12 years seems advantageous. Two or more observers should examine larger samples to reduce the false negative error tied with such samples.
Collapse
Affiliation(s)
- Vahid Rakhshan
- Department of Dental Anatomy and Morphology, Dental Branch, Islamic Azad University, PO Box 19585-175, Tehran, Iran.
| |
Collapse
|
42
|
Abstract
OBJECTIVE To assess the mesio-distal tooth width in normal, crowded, or spaced dentitions. MATERIALS AND METHODS A sample of 192 maxillary and mandibular dental casts of Libyan subjects was selected from a larger cohort. These subjects did not present with craniofacial anomaly, hypodontia, significant attrition, caries, restorations, or history of permanent tooth extraction or orthodontic treatment. The sample was divided into normal, crowded, and spaced groups according to tooth size/arch length discrepancy. Each group included 32 upper and lower dental casts with equal numbers of males (mean (SD) age = 14.7 (1.9) years) and females (mean (SD) age = 15.7 (2.5) years). The mesiodistal (MD) tooth width, sum of the MD tooth widths mesial to the first molars (TTM), sum of the MD width of the four incisors (I), and the sum of the MD width of canine and first and second premolars (CPP) were calculated for each group. The independent Student t-test was applied sequentially to detect significant differences between paired groups. The ANOVA test was undertaken to explore significant differences between the three groups. Pearson coefficient of correlation was used to evaluate the correlation between I and the corresponding CPP in maxillary and mandibular arches. RESULTS MD tooth width, TTM, I, and CPP were significantly wider in the crowded compared to normal and spaced dentitions (P<0.001), except for the width of the upper left lateral incisors in both normal and crowded groups. Although there was a trend for smaller tooth widths in spaced dentitions compared to normal ones, this was only significant in the maxillary left central incisor, maxillary right and left lateral incisors, maxillary right first premolar, mandibular right lateral incisor, and mandibular right canine (P<0.05). However, the maxillary TTM, I, and CPP in the normal group were significantly greater than in the spaced group (P<0.05). Significant positive correlations existed between the mean values of I and CPP in both the maxillary and mandibular dentitions of all groups (P<0.01). CONCLUSIONS It appears that in the studied Libyan population, the MD tooth width is a significant component of crowding/spacing.
Collapse
Affiliation(s)
- Iman Bugaighis
- Department of Orthodontic, P.O. Box 595, Faculty of Dentistry, University of Benghazi, Benghazi, Libya
| | - Suleiman Elorfi
- Demonstrator at the Orthodontic Department, Faculty of Dentistry, University of Benghazi, Benghazi, Libya
| |
Collapse
|
43
|
Borzabadi-Farahani A. Orthodontic Considerations in Restorative Management of Hypodontia Patients With Endosseous Implants. J ORAL IMPLANTOL 2012; 38:779-91. [DOI: 10.1563/aaid-joi-d-11-00022] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The use of implant-supported restorations in patients with hypodontia remains challenging and requires a multistage treatment that begins in late mixed dentition and continues into late adolescence. The aim of this article is to review the role of orthodontics in endosseous implant rehabilitation of patients with hypodontia. The MEDLINE, Web of Science, Scopus, Cochrane databases, and necessary scientific textbooks were searched for relevant studies and reviews, and as far as possible, they were only included if they had been cited at least once in the literature. Dental implants are susceptible to overloading as the periodontal ligament is absent and the proprioceptive nerve endings are either lacking or very limited. Patients with hypodontia may present with skeletal features such as short and retrognathic maxilla, prognathic mandible, and shorter lower anterior facial height, and they sometimes need orthognathic correction as part of their overall treatment. Dental problems vary and include bimaxillary retroclination of incisors, spacing, centerline discrepancies, microdontia, hypoplastic enamels, ankylosis of the retained primary teeth, overeruptions, and volume deficiencies of alveolar ridges. The challenges mentioned, as well as bone volume deficiencies, compromise the successful placement of implants. Orthodontic strategies and techniques, such as uprighting mechanics, extrusion/intrusion, delayed space opening, and orthodontic implant site-switching, can be used to create, preserve, or augment the implant site. After orthodontic site development, the final planned position of the teeth should be maintained with a rigid bonded retainer; overlooking this stage may compromise the implant site and require orthodontic retreatment.
Collapse
Affiliation(s)
- Ali Borzabadi-Farahani
- Craniofacial Orthodontics, Children's Hospital Los Angeles, and Center for Craniofacial Molecular Biology, University of Southern California, Los Angeles
| |
Collapse
|
44
|
Severini JMBG, da Silva Dalben G, Richieri-Costa A, Ozawa TO. Dental anomalies in Richieri-Costa-Pereira syndrome. Oral Surg Oral Med Oral Pathol Oral Radiol 2012; 114:99-106. [DOI: 10.1016/j.oooo.2012.03.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 02/06/2012] [Accepted: 03/06/2012] [Indexed: 11/25/2022]
|
45
|
Galluccio G, Castellano M, La Monaca C. Genetic basis of non-syndromic anomalies of human tooth number. Arch Oral Biol 2012; 57:918-30. [PMID: 22325622 DOI: 10.1016/j.archoralbio.2012.01.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 01/09/2012] [Accepted: 01/10/2012] [Indexed: 11/25/2022]
Abstract
Teeth organogenesis develops through a well-ordered series of inductive events involving genes and BMP, FGF, SHH and WNT represent the main signalling pathways that regulate epithelial-mesenchymal interactions. Moreover, progress in genetics and molecular biology indicates that more than 300 genes are involved in different phases of teeth development. Mutations in genes involved in odontogenesis are responsible for many dental anomalies, including a number of dental anomalies that can be associated with other systemic skeletal or organic manifestations (syndromic dental anomalies) or not (non-syndromic dental anomalies). The knowledge of the genetic development mechanisms of the latter is of major interest. Understanding the mechanisms of pathogenesis of non-syndromic teeth anomalies would also clarify the role of teeth in craniofacial development, and this would represent an important contribution to the diagnosis, treatment and prognosis of congenital malformations, and the eventual association to other severe diseases. Future research in this area is likely to lead to the development of tests for doctors to formulate an early diagnosis of these anomalies.
Collapse
Affiliation(s)
- Gabriella Galluccio
- Sapienza University of Rome, Department of Oral Medicine, Course of Dentistry Degree, Courses of Orthognatodontics 2 and Clinical Gnatology 2, Italy.
| | | | | |
Collapse
|