Salivary Factors Related to Caries in Children with Autism

Author:

Morales-Chávez MC,Villarroel-Dorrego M,Salas V

Abstract

Many predisposing factors to caries are present in autism, however, it is unlikely that autistic patients exhibit higher caries indexes than the rest of the population. Objective: To evaluate salivary factors related to caries in autistic patients. Study design: 34 autistics and 34 controls aged between 4–13 years old were included. Decayed, missing, and filled teeth (DMFT) index and oral hygiene simplified index (IHO-S) were assessed, as well as, pH, total proteins, phosphate, calcium and IgA in saliva. All data were analyzed by chi2 and Student t tests for independent samples. P values<0.05 were considered statistically significant. Results: Autistic patients showed less caries than controls (p≤0.001), DMFT was 1±1 and 3±2 respectively (p≤0.001). In relation to IHO-S, values increased (p=0.008) in autistic patients (2.25±0.78) compared to controls (1.79±0.59), however Salivary ph means were similar (7.20±0.48 and 7.27±0.34 respectively). Decreased calcium levels (p=0.013) were observed in autistics (0.621±0.35 mmol/L) compared to controls (0.89±0.51 mmol/L), but phosphate levels were similar (6.17±4.22 M, 5.51±4.86 M respectively). When total proteins of saliva were assessed, autistics showed a slight increment (2.65±1.81 mg/mL) compared to controls (2.24±1.27 mg/mL) and zymography showed a higher proteolytic activity in autistic children. Finally, IgA concentration reached 116.55±90.97 μg/mL in autistics and 161.61 ± 193.37μg/mL (p=0.527) in the control group. Conclusions: Even though patients with autism exhibited a poorer oral hygiene, caries indexes were lower, calcium levels in saliva were found to be lesser and phosphate levels higher.

Publisher

The Journal of Clinical Pediatric Dentistry

Subject

General Medicine

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