Inherited risks for susceptibility to dental caries

Area of Science:

• Genetics
• Oral Health
• Immunology

Background:

• Dental caries incidence is influenced by host factors including enamel structure, immune response to bacteria, and saliva composition.
• Genetic variations in these host factors may increase susceptibility to dental caries.
• Previous studies, particularly twin studies, suggest a role for genetic inheritance in caries risk.

Purpose of the Study:

• To systematically review the literature and determine if the risk for dental decay is related to patterns of genetic inheritance.
• To establish a foundation for future research utilizing human genome sequencing to understand dental caries.
• To explore the link between genetic variations and susceptibility to dental caries.

Main Methods:

• Systematic literature review.
• Analysis of existing studies on genetic contributions to dental caries.
• Examination of evidence from twin studies and genetic linkage studies.

Main Results:

• Twin studies provide strong evidence for the role of inheritance in dental caries.
• Inherited disorders affecting tooth development and enamel structure are linked to increased caries incidence.
• The association between specific human leukocyte antigen (HLA) genetic inheritance patterns and caries risk is weak.
• Conclusive genetic linkage has not been determined for all syndromes of altered tooth development.

Conclusions:

• The evidence supporting an inherited susceptibility to dental caries is currently limited.
• Further genetic linkage studies on well-defined populations are necessary to fully analyze the relationship between inheritance and dental caries.
• Predicting future decay rates based on current genetic knowledge is not reliably possible.