R Krishnan1, M Ramesh2, P Chalakkal3. 1. Department of Pedodontics & Preventive dentistry, Vinayaka Missons Sankarachariyar Dental College, Salem, 636308, Tamilnadu, India. drrameshk@gmail.com. 2. Department of Oral pathology, Vinayaka Missons Sankarachariyar Dental College, Salem, Tamilnadu, India. 3. Department of Pedodontics & Preventive Dentistry, Goa Dental College and Hospital, Bambolim, 403202, Goa, India.
Abstract
AIM: This was to study the prevalence of molar incisor hypomineralisation (MIH) among school children residing in a fluorosis endemic area in Tamilnadu (Salem, India). METHODS: A target sample of 5000 children of age ranging between 9 and 14 years, comprising 250 children from each of 20 blocks of Salem, participated in this study. The examination was completed in their respective schools by a calibrated examiner using EAPD criteria. RESULTS: Of 4989 children examined, 384 children had MIH. A prevalence of 7.3 %. The MIH found in girls was 8.9 % compared with 6.1 % in boys. Single-tooth involvement of MIH was seen predominantly in incisors (2.24 %), whereas with molars usually three teeth were involved (1.1 %). MIH with caries involvement was found in 51 % of the teeth. CONCLUSION: The prevalence of MIH in the endemic fluorosis district was found to be 7.3 %. A gradual increase in MIH was seen with age due to post enamel breakdown. Caries involvement was also seen in more than 50 % of the MIH-involved teeth. This prevalence study for molar incisor hypomineralisation (MIH) is rare in the literature, especially in a fluorosis endemic district in Tamilnadu.
AIM: This was to study the prevalence of molar incisor hypomineralisation (MIH) among school children residing in a fluorosis endemic area in Tamilnadu (Salem, India). METHODS: A target sample of 5000 children of age ranging between 9 and 14 years, comprising 250 children from each of 20 blocks of Salem, participated in this study. The examination was completed in their respective schools by a calibrated examiner using EAPD criteria. RESULTS: Of 4989 children examined, 384 children had MIH. A prevalence of 7.3 %. The MIH found in girls was 8.9 % compared with 6.1 % in boys. Single-tooth involvement of MIH was seen predominantly in incisors (2.24 %), whereas with molars usually three teeth were involved (1.1 %). MIH with caries involvement was found in 51 % of the teeth. CONCLUSION: The prevalence of MIH in the endemic fluorosis district was found to be 7.3 %. A gradual increase in MIH was seen with age due to post enamel breakdown. Caries involvement was also seen in more than 50 % of the MIH-involved teeth. This prevalence study for molar incisor hypomineralisation (MIH) is rare in the literature, especially in a fluorosis endemic district in Tamilnadu.
Authors: P C Calderara; P M Gerthoux; P Mocarelli; P L Lukinmaa; P L Tramacere; S Alaluusua Journal: Eur J Paediatr Dent Date: 2005-06 Impact factor: 2.231
Authors: S Alaluusua; P L Lukinmaa; T Vartiainen; M Partanen; J Torppa; J Tuomisto Journal: Environ Toxicol Pharmacol Date: 1996-05-15 Impact factor: 4.860