A controlled study comparing salivary osmolality, caries experience and caries risk in patients with cerebral palsy

• Main Authors: Diniz, M.-B (Author), Garrubbo, C.-C (Author), Habibe, C.-H (Author), Loyola-Rodriguez, J.-P (Author), Ruiz, L.-A (Author), Santos, M.-T.-B.-R (Author)
• Format: Article
• Language: English
• Published: Medicina Oral S.L. 2018
• Subjects: adolescent; Adolescent; adult; area under the curve; Article; cerebral palsy; Cerebral palsy; Cerebral Palsy; chemistry; child; Child; Child, Preschool; comparative study; complication; controlled clinical trial; controlled study; dental caries; Dental caries; Dental Caries; diagnostic test accuracy study; female; Female; hemiparesis; human; Humans; major clinical study; male; Male; osmolality; Osmolar concentration; Osmolar Concentration; osmolarity; osmometry; preschool child; quadriplegia; receiver operating characteristic; risk assessment; Risk Assessment; saliva; Saliva; saliva analysis; sensitivity and specificity; young adult; Young Adult
• Online Access: View Fulltext in Publisher

 Background: Cerebral palsy (CP) is a permanent neurological disorder accompanied by secondary musculoskel-etal masticatory disorder, with repercussion on chewing and deglutition functions. In these conditions, the liquids ingestion is compromised resulting in salivary osmolality alteration. The objective of this study was to compare salivary osmolality, caries experience and caries risk between normoreactive individuals and patients with CP. Material and Methods: The participants were 4-20 years old: 52 patients with CP treated at a reference rehabilitation centre (study group, SG), and 52 normoreactive individuals (control group, CG). Saliva was collected for five minutes using cotton rolls. Following centrifugation, salivary osmolality was determined by freezing point depression osmometry. Evaluations included caries experience (DMFT index), and caries risk based on a caries-risk assessment tool (CAT). Descriptive and inferential statistics (Chi square and Student t tests) were used to compare the groups. Receiver operating characteristic (ROC) analyses were performed and the area under the ROC curve (Az) was calculated. The level of significance was set at 5%. Results: The groups were homogeneous for sex (p=0.843) and age (p=0.128). In the SG, spastic type CP was the most prevalent (80.8%), and patients showed significantly higher salivary osmolality values compared with the CG (p<0.001). No significant differences in caries experience (p=0.159) or caries risk (p=0.297) were observed. ROC curve analysis determined a salivary osmolality cutoff point of >74 for the SG and >54 for the CG in the presence of dental caries. A significant correlation was verified between salivary osmolality and the DMFT index for the SG (p≤0.05). Conclusions: Although patients with CP showed higher salivary osmolality values, higher caries experience and caries risk were not observed compared with normoreactive individuals. © Medicina Oral S. L. C.I.F.