These findings suggest that Er:YAG laser by PIPS-activated irrigation can be considered as an effective irrigant agitation technique in pediatric endodontics.
The findings of this study showed that periodontitis causes pulp volume to reduce by approximately 20%. The use of three-dimensional models provides better understanding of the dental anatomy before endodontic treatment and, consequently, improvement of treatment outcomes. Additional studies are needed to investigate the effect of periodontal disease on pulp volume and surface area.
OBJECTIVE: Fear and anxiety is a major problem in the treatment of pediatric patients. The pain that occurs during the use of caries removal instruments has a strong potential of triggering dental anxiety and fear in most children and adults. This study aimed to evaluate and compare the pain perceptions of children who underwent caries removal via an Er:YAG laser and traditional rotary instruments. MATERIALS AND METHOD: Occlusal caries was removed from the permanent molar teeth of 120 pediatric patients who referred to the Department of Pediatric Dentistry, Faculty of Dentistry, Necmettin Erbakan University, using an Er:YAG laser and high-and low-speed rotary instruments. All restorative procedures were performed by one clinician. The participant children were asked to choose a value or figure from the Wong-Baker FACES Pain Rating Scale, and the data were analyzed using the Wilcoxon test (α=0.05). RESULTS: A statistically significant difference was found between the groups (p<0.05). In the Er:YAG laser group, 20.83% of the participants, and in the conventional group, 6.66% of the participants selected the option 'no hurt'. The option 'hurts worst' was selected in neither of the groups. CONCLUSION: The use of Er:YAG laser for caries removal causes less or no pain during the operations, compared to traditional rotary instruments. Therefore, it can be argued that Er:YAG laser is a more comfortable and acceptable alternative for pediatric patients.
Polymerization of resin-based materials leads to temperature rise, caused by the exothermic nature of the reaction and energy absorbed during polymerization. This temperature rise is influenced by intensity of light, composition of resins, and type of light source. This study evaluated thermal insulating properties of four photo-polymerizing pulp-capping agents in primary and permanent teeth. Roots of 80 primary and permanent teeth were removed. Class-I cavities were prepared on the occlusal surfaces of teeth. Materials used were TheraCal LC, Biner LC, ACTIVA BioACTIVE, and Calciplus LC and light sources were 3 M-Elipar and VALO LED. Temperature rise was measured using a J-type thermocouple. Data were statistically evaluated using ANOVA and Tukey's tests (p = 0.05). VALO LED exhibited significantly lower temperature rise in all groups and temperature rise in primary teeth was significantly higher with all experimental materials (p < 0.05). The highest temperature change was observed in the Biner LC group (3.82 ± 0.58) and the lowest change in the Activa-BioACTIVE group (1.78 ± 0.34). The VALO LED light source caused a significantly lower increase in pulpal temperature compared with the 3 M-Elipar source. All tested materials and light sources maintained pulpal temperature under safe limits, with temperature increases not exceeding 5.5°C.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.