ABSTRACT
Statement of the Problem: Dental injection is one of the most fearful procedures in dental setting, especially for children. Many researchers have attempted to find a painless method. As computer controlled local anesthesia delivery system devices [CCLADs] allow the speed rate and pressure of injection solution to be controlled, they may cause less pain during injection in comparison to the conventional method
Purpose: The aim of this study was to compare pain perception in dental injection by Smartject with conventional technique
Materials and Method: The present study was a randomized single-blind crossover clinical trial. The participants consisted of 50 healthy volunteer dental students. They received a topical anesthetic agent plus injection in maxillary premolar buccal mucosa via conventional technique on one side [control] and a topical anesthetics agent plus injection in maxillary premolar buccal mucosa by Smartject on the other side [experimental]. The first injection method was chosen based on block randomization table. A blind person recorded the subjects' pain perception of injection based on the visual analogue scale [VAS] in the two groups. Repeated measure test, independent Student t-test and Student paired t- test were used. Statistical significance was defined at p< 0.05
Results: There was statistically significant difference in VAS score between Smartject and the conventional technique. The mean of VAS scores for Smartject and the conventional technique were 14.5 +/- 7.4 and 24 +/- 12.1, respectively
Conclusion: It is suggested, needle penetration is not the main reason of pain during injection. Inconsistent fluid pressure created by injected anesthetic solution on nerve fibers is more impressive in pain development. Hence, Smartject as a CCLAD can be considered as an appropriate device for dental injection
ABSTRACT
Statement of the Problem: Prediction of child cooperation level in dental setting is an important issue for a dentist to select the proper behavior management method. Many psychological studies have emphasized the effect of birth order on patient behavior and personality; however, only a few researches evaluated the effect of birth order on child's behavior in dental setting
Purpose: This study was designed to evaluate the influence of children ordinal position on their behavior in dental setting
Materials and Method: A total of 158 children with at least one primary mandibular molar needing class I restoration were selected. Children were classified based on the ordinal position; first, middle, or last child as well as single child. A blinded examiner recorded the pain perception of children during injection based on Visual Analogue Scale [VAS] and Sound, Eye and Movement [SEM] scale. To assess the child's anxiety, the questionnaire known as "Dental Subscale of the Children's Fear Survey Schedule" [CFSS-DS] was employed
Results: The results showed that single children were significantly less cooperative and more anxious than the other children [p<0.001]. The middle children were significantly more cooperative in comparison with the other child's position [p< 0.001]
Conclusion: Single child may behave less cooperatively in dental setting. The order of child birth must also be considered in prediction of child's behavior for behavioral management
ABSTRACT
The Witkop syndrome is a rare autosomal dominant disorder characterized by the absence of several teeth and abnormalities of the nails. This is the first report of a rare genetic tooth and nail syndrome diagnosed in a 2.5-year-old boy with early exfoliation of the primary canine, absence of the primary incisors, and nail dysplasia. A homozygous mutation was identified in 3'-UTR of MSX1 gene in the proband. The parents of the patient had no dental and nail anomalies