Introduction: Contemporary research provides new evidence for the relationship between genes and tooth decay in twin children.
Aim: The aim of this article is to investigate and evaluate the DMFT (t) caries index after a prophylactic review of 4 twin pairs from 8 to 10 years of age.
Methods: The study monitors dental caries and DMFT (t) caries index in 4 twin pairs from 8 to 10 years of age. Dental status is assessed and registered according to WHO criteria. Observation units: temporary and permanent teeth and surfaces with/without carious lesions, active carious lesions at the level of diagnostic threshold d1a. Signs of observation: carious, filled or extracted due to caries primary or permanent tooth. The presence of at least one carious lesion/surface. Time and place of observation: The study is conducted at the Faculty of Dental Medicine in Varna, a clinical hall in 2017 - 2018 school year. Pre-informed consent was received from each parent. The selection of children was random. Surveillance specialists: A doctor, specialist in pediatric dentistry.
Results: The average caries index DMFT (t) of the twin pairs tested was DMFT (t) = 2.625. The highest value is the index for the last twin pair for the first child of the DMFT (t)=6 respectively and for the second child DMFT (t)=4.
Conclusion: 1. One of the twin pairs has a higher DMFT (t) index and a higher incidence of caries. 2. The children from twin pairs with higher caries index have a high caries risk.
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