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Mendonça FL, Regnault FGDC, Grizzo IC, Martins DDS, Fragelli C, Leal SC, Honório HM, Rios D. Comparison between two molar incisor hypomineralization detection criteria in epidemiological surveys. Int J Paediatr Dent 2023. [PMID: 37859577 DOI: 10.1111/ipd.13127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 08/01/2023] [Accepted: 09/13/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND There is no consensus on which molar incisor hypomineralization (MIH) indices are more suitable for epidemiological surveys. AIM To compare the operational aspects and diagnostic ability of the MIH index (simplified/MIH_s and extended/MIH_e) with the MIH-Severity Scoring System (MIH-SSS) in classifying and diagnosing MIH. DESIGN This cross-sectional study assessed the indices in a homogeneous group of 680 6- to 10-year-old schoolchildren in Bauru, Brazil, who had at least one first permanent molar, ensuring consistent conditions. Followed by toothbrushing, the children seated on school chairs were examined by the two calibrated researchers under artificial lighting, using mouth mirror and WHO probe, and chronometer recording the duration of examinations. RESULTS The prevalence of MIH was 24.7%. The most common characteristic of MIH was demarcated opacity, with a prevalence of 81.7% and 85.45% according to the MIH_s and the MIH-SSS, respectively. A positive association was observed among the MIH_s, the MIH_e, and the MIH-SSS (chi-squared test; p < .01). The MIH-SSS demonstrated a shorter average application time than both versions of the MIH index (ANOVA/Tukey; p < .05). Additionally, fluorosis was found to be the most prevalent among other developmental defects of enamel, with a prevalence of 38.38%. CONCLUSION All systems effectively diagnosed MIH and its characteristics.
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Affiliation(s)
- Fernanda Lyrio Mendonça
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | | | - Isabella Claro Grizzo
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Daiana da Silva Martins
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Camila Fragelli
- Morphology and Children's Clinic Department, Araraquara Dental School, São Paulo State University - UNESP, Araraquara, Brazil
| | - Soraya Coelho Leal
- Department of Dentistry, School of Health Science, University of Brasilia, Brasilia, Brazil
| | - Heitor Marques Honório
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Daniela Rios
- Department of Pediatric Dentistry, Orthodontics and Public Health, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
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Rodd HD, Nazzal H, Bonifacio CC, Ruth CW, Crombie F, El Shahawy O, Folayan MO, Gambetta-Tessini K, Goyal A, Hasmun N, Issa AI, Jundi S, Manton DJ, Narasimhan S, Omar S, Parekh S, Popoola BO, Silva M, Taylor G, Naomi YQ. An International Investigation of Molar Incisor Hypomineralisation (iMIH) and Its Association with Dental Anomalies: Development of a Protocol. Dent J (Basel) 2023; 11:dj11050117. [PMID: 37232768 DOI: 10.3390/dj11050117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND Molar incisor hypomineralisation (MIH) is a common disorder of tooth development, which has recently been found to be associated with a higher prevalence of hypodontia. The aim of this international multicentre study is to determine the association between MIH and other developmental anomalies in different populations. METHODS Investigators were trained and calibrated for the assessment of MIH and dental anomalies and ethical approvals obtained in each participating country. The study aimed to recruit 584 children with MIH and 584 children without MIH. Patients aged 7-16 years who attend specialist clinics will be invited to participate. Children will undergo a clinical examination to determine the presence and severity of MIH, using an established index. The presence of any other anomalies, affecting tooth number, morphology, or position, will be documented. Panoramic radiographs will be assessed for dental anomalies and the presence of third permanent molars. Statistical analysis, using a chi squared test and regression analysis, will be performed to determine any differences in dental anomaly prevalence between the MIH and non-MIH group and to determine any association between dental anomalies and patient characteristics. CONCLUSION This large-scale study has the potential to improve understanding about MIH with benefits for patient management.
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Affiliation(s)
- Helen D Rodd
- Unit of Oral Health, Dentistry and Society, School of Clinical Dentistry, University of Sheffield, Sheffield S10 2TA, UK
| | - Hani Nazzal
- Department Clinical Oral Health Sciences, College of Dental Medicine, Qatar University, Doha P.O. Box 2713, Qatar
- Hamad Dental Centre, Hamad, Medical Corporation, Doha P.O. Box 3050, Qatar
| | | | - Choe Wei Ruth
- National University Centre for Oral Health Singapore, Singapore 119085, Singapore
| | - Felicity Crombie
- Melbourne Dental School, University of Melbourne, Melbourne 3010, Australia
| | - Osama El Shahawy
- Pediatric Dentistry Department, Cairo University, Cairo 12613, Egypt
| | | | - Karla Gambetta-Tessini
- Department of Oral Rehabilitation, Faculty of Dentistry, University of Talca, Talca 3460000, Maule, Chile
| | - Ashima Goyal
- Oral Health Sciences Centre, PGIMER, Chandigarh 160012, India
| | - Noren Hasmun
- Department of Oral Sciences, Faculty of Dentistry, University of Otago, Dunedin 9054, New Zealand
| | - Ahmad I Issa
- Ministry of National Guard Health Affairs, King Abdulaziz Hospital, Riyadh 36428, Al Ahsa, Saudi Arabia
| | - Suhad Jundi
- Preventive Dentistry Department, Faculty of Dentistry, Jordan University of Science and Technology, Ar-Ramtha P.O. Box 3030, Jordan
| | - David J Manton
- Academic Center for Dentistry (ACTA), Gustav Mahlerlaan, 3004 Amsterdam, The Netherlands
- University Medical Centre Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
| | | | - Samah Omar
- Pediatric Dentistry Department, Loma Linda University School of Dentistry, Loma Linda, CA 92350, USA
| | - Susan Parekh
- UCL Eastman Dental Institute, London WC1E 6DG, UK
| | | | - Mihiri Silva
- Melbourne Dental School, University of Melbourne, Melbourne 3010, Australia
- Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne 3052, Australia
| | - Greig Taylor
- School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle-upon-Tyne NE2 4AZ, UK
| | - Yang Qiyue Naomi
- Youth Preventive Services, Health Promotion Board, Singapore 179369, Singapore
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Elzein R, Chouery E, Abdel-Sater F, Bacho R, Ayoub F. Molar incisor hypomineralisation in Lebanon: prevalence and clinical characteristics. Eur Arch Paediatr Dent 2019; 21:609-616. [PMID: 31865536 DOI: 10.1007/s40368-019-00505-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 12/10/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND Molar incisor hypomineralisation (MIH) is a qualitative enamel developmental defect affecting 1-4 first permanent molars and sometimes the permanent incisors. MIH is extremely widespread around the world and presents a considerable clinical problem in paediatric dentistry. Although, little prevalence data exist for Middle East populations including the Lebanese one. AIM The objectives of this study were to investigate the prevalence of MIH in 7-9-year-old Lebanese children, with relevance to gender, jaw and side distribution, and to assess the clinical status, extent and severity of MIH lesions of the affected teeth. DESIGN Representative sample (n = 659) of 7-9-year-old Lebanese children attending private and public schools distributed throughout Lebanon was examined for MIH. Clinical status, extent and severity of MIH lesions on FPMs and permanent incisors were scored using the short-form grading method (MIH index) of Ghanim et al. (Eur Arch Paediatr Dent 16:235-246, 2015). RESULTS An overall MIH prevalence of 26.7% was reported with no significant predilection for girls over boys. 52.8% of the cases present with only molars and. 47.2% with both molars and incisors and did not present any significant difference between upper and lower jaws (P = 0.325). Left-side FPMs were more affected than the right ones (P = 0.0218). Central incisors were significantly more affected than the laterals in both jaws (P < 0.0001). Maxillary central incisors were significantly more affected than their mandibular counterparts (P < 0.0001). Most of the clinical status was demarcated opacities extended on less than the third of the tooth surface. The extent of lesions correlated significantly with the number of affected molars. Most of the affected teeth presented with mild defects and the degree of severity was not correlated with gender but significantly increased with age. CONCLUSIONS MIH is prevalent in Lebanon. Further studies are required to analyse the possible systemic and environmental etiologies among Lebanese children.
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Affiliation(s)
- R Elzein
- Department of Pediatric Dentistry and Public Dental Health, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon.
| | - E Chouery
- Medical Genetics Unit, Faculty of Medicine, Saint-Joseph University, Beirut, Lebanon
| | - F Abdel-Sater
- Laboratory of Cancer Biology and Cellular Immunology, Department of Biological Sciences, Faculty of Sciences, Lebanese University, Beirut, Lebanon
| | - R Bacho
- Department of Pediatric Dentistry and Public Dental Health, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon
| | - F Ayoub
- Department of Forensic Odontology, Human Identification and Anthropology, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon
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