Nouf Al-Hammad

Retention and caries-preventive effect of glass ionomer and resin-based sealants: An 18-month-randomized clinical trial

The objective of this study was to compare the retention and caries-preventive effect of glass ionomer (Fuji Triage) and resin-based (Clinpro) sealants among 6-9-year-old children. This split-mouth, randomized clinical trial covered 35 children/140 fully erupted permanent first molars. Evaluation was conducted by two independent examiners after 6, 12, and 18 months and the data were compared in relation to the childrens caries risk and age groups. The Kaplan-Meier survival method and chi-square test were used for analysis. There were no statistically significant differences in the survival of partial and fully retained sealants or in the survival of caries-free pits and fissures between glass-ionomer and resin-based sealants. In terms of retention, both sealants performed better in the younger age group at the end of the study, and showed better caries prevention in moderate caries risk children. After 18 months, both sealants had comparable retention and caries-preventive effects in 6-9-year old children.

Single Nucleotide Polymorphism (SNPs) in the Genes Associated with Tooth Agenesis

Objectives: The main focus of this review article was to collate up to date knowledge with regard to significance of single nucleotide polymorphisms (SNPs) in various genes associated with tooth agenesis. Failure to develop complete set of teeth also called tooth agenesis is a common developmental abnormality manifested mainly as an isolated condition. This anomaly is also associated with many developmental syndromes. Methods: We reviewed the evidence from the literature with regard to SNPs in many genes associated with this developmental anomaly. The information contained in this review deals only with non-syndromic form of tooth agenesis. This condition generally affects third molars or one or few other permanent teeth, however, in some cases its severity is relatively prevalent. Results and Conclusions: Mutations in genes such as Msh homeobox 1 (MSX1), Paired box gene 9 (PAX9), Axis inhibitor protein 2 (AXIN2) and Ectodysplasin A (EDA) have been identified that are associated with the familial form of the disease. It has been shown that the phenotypes associated with these mutations indicate the involvement of more complex mechanisms. Clinical Significance: Evidence collected so far has immense clinical significance to clinical dentists in providing comprehensive guide outlining the role of these gene mutations (SNPs) in various genes and also how the patients affected with this condition will be clinically diagnosed and managed in future.

Oral health comprehension in parents of Saudi cerebral palsy children

Objective To determine oral health comprehension among parents of cerebral palsy (CP) children. Methods A self-administered questionnaire was utilized to obtain the required information. The study was conducted in two main centers for disabled children in Riyadh, Saudi Arabia. Results Parents of all 157 CP children registered in the two centers completed the questionnaire. Mothers mostly (86.6%) completed the questionnaire. Majority (98.7%) of the parents knew the importance of dental health for general health. More than two-third (70%) of the parents thought that teeth should be brushed thrice daily or after each meal. About three in every ten (29.9%) parents were not aware of the beneficial effect of fluoride in preventing dental caries; and very few (9.6%) were aware of water as a source of fluoride. Almost all (98.7%) the parents knew that sugary foods caused dental caries. Three-fourth (75.8%) of the parents were not aware of the possible harmful effects of bottled juices on teeth. There were no significant (p > 0.05) associations between the parental age/gender with any of the dependent variables. Conclusion Parents of CP children generally showed satisfactory oral health comprehension. However, they need further oral health education in several areas.

Dental caries and related risk factors in Saudi cerebral palsy children

Objective: To determine caries experience and related risk factors in cerebral palsy (CP) children. Methods: Random sample of CP children was examined for dental caries and oral hygiene. Questionnaire was utilized for information about caries risk factors. This cross-sectional study was conducted in Riyadh from December 2014 to May 2015. Results: Fifty-two CP children were examined with mean age of 6.3±2.7 years. Only one (1.9%) child out of the 52 had no clinical caries. Combined (dmft plus DMFT) mean caries score among study sample was 9.98±3.99. Older children had significantly higher mean caries scores (11.5±3.34) than younger children (8.86±4.1, p=0.017). The CP children with good oral hygiene had lowest mean caries score (5.8±7.32) as compared to those with fair (9.72±3.3) and poor (11.55±3.05) oral hygiene (p=0.012). Those children whose first dental visit was for routine check-up had significantly (p=0.02) lower mean caries scores (7.33±4.65) than those who made their first visit due to dental problem (11.57±4.15). Similarly, those who had topical fluoride applications by dentist had significantly (p=0.003) lower mean caries scores (8.67±4.14) than those with no topical fluoride application (11.9±2.89). Conclusion: The studied CP children had very high caries experience and poor oral hygiene. There was strong association between the high caries experience and poor oral hygiene.

Orofacial findings associated with obstructive sleep apnea in a group of Saudi Children.

Objectives: To evaluate orofacial and occlusion findings associated with obstructive sleep apnea (OSA) in a group of Saudi children. Methods: The sample consisted of 30 OSA patients, and 30 age and gender matched, healthy control. The following facial and occlusal features were evaluated: frontal view, facial profile, mandibular angle, tongue size, dental midline to facial midline, upper to lower dental midline, overjet, overbite, anterior open bite, cross bite, scissors bite, palatal vault, maxillary and mandibular arch crowding and spacing, molar and canine relationship. Results: Participants age ranged from 3 to 8 years. Study group had steeper mandibular angle, deeper palatal vault, and less spaced upper and lower arches. There was no statistically significant difference between the two examined groups regarding facial morphology, facial profile, midline, anterior openbite, tongue size, posterior crossbite, overjet or molar relationship. Conclusion: OSA children have a relatively different orofacial morphology compared with control children. OSA subjects had deeper palatal vault, steeper mandibular plane angle and less spaced upper and lower arches compared to control.