Evaluation of the Effects of Topical Fluoride Varnish and Fluoride Releasing Adhesive on Shear Bond Strength of Orthodontic Brackets: An In Vitro Study.

Aim: The aim of this study was to evaluate the in vitro effects of topical fluoride varnish and fluoride-releasing adhesive on the shear bond strength (SBS) of orthodontic brackets. Materials and methods: A total of 60 extracted premolars were bonded to 0.022, stainless steel brackets and equally divided into three groups (n = 20) based on the adhesive used-Group I- Transbond XT Plus color change (3M Unitek), Group II- Transbond XT followed by application of fluoride varnish, and Group III- Transbond XT (3M Unitek) adhesive and their bond strengths were compared. Brackets were debonded with a universal testing machine. The modified adhesive remnant index (ARI) was also recorded. Data were analyzed by using an analysis of variance, and a post hoc test was performed for multiple comparisons among the groups. Results: There were no significant differences between the SBSs (p = 0.91) between the groups. Also, no significant difference was found in the modified ARI (p = 0.093). Conclusion: The orthodontic adhesives used in our study, with or without the application of topical fluoride varnish, did not have a significant effect on the bond strengths of brackets. Clinical significance: Adhesives evaluated in this study can be successfully used for bonding brackets. How to cite this article: Chauhan C, Mangla R, Gandhi G, et al. Evaluation of the Effects of Topical Fluoride Varnish and Fluoride Releasing Adhesive on Shear Bond Strength of Orthodontic Brackets: An In Vitro Study. Int J Clin Pediatr Dent 2023;16(1):37-41.

Efficacy of Transdermal Diclofenac Patch as an Analgesic Following Premolar Extractions in Orthodontic Patients.

AIM: The aim of the study was to evaluate the efficacy of transdermal diclofenac patch versus oral diclofenac tablet as analgesic following premolar extractions in orthodontic patients. MATERIALS AND METHODS: Thirty-three symmetrical pairs of indicated premolars (either first or second) were included for the present study. Each patient was given either transdermal diclofenac sodium patch 100 mg once a day or oral diclofenac tablet 50 mg twice a day for 3 days after the extraction. Pain was assessed by a 10-point visual analog scale and 4-point verbal rating scale given to the patient for each day for 3 days after the extraction. All observational findings were recorded, tabulated, and analyzed statistically. RESULTS: This study consisted of 33 patients with a mean age of 18.73 ± 3.677 years. Out of 33 patients included in this study, 5 were male and 28 were female. The result of the study showed that consecutive postoperative days transdermal diclofenac patch was slightly more efficient in controlling the postoperative pain in the extraction done for the orthodontic purpose than diclofenac oral tablet, however statistically no significant difference was observed using Chi-square test (P > 0.05). CONCLUSION: Transdermal diclofenac patch showed potential analgesic modality for the management of mild-to-moderate intensity pain in premolar orthodontic extraction, with lower incidence of systemic adverse effects. However, cost and availability may limit the use of transdermal patch.

Mandibular Fracture in Children: A New Approach for Management and Review of Literature.

Maxillofacial fractures in the pediatric population consist of less than 15% of all facial fractures. Road traffic accidents, sport-related injury, and fall constitutes most common causes for the facial injury. Incidence of the facial fractures is comparatively higher in boys than in girls. In the management of the maxillofacial fractures in pediatric patients, we have to take into consideration the variation in anatomy and physiology between children and adults, as well as the particular stage of growth and dental development. Treatment options can vary from closed reduction to open reduction and internal fixation. In this article, the authors successfully managed the pediatric mandibular fractures by performing bridle wiring with the help of an orthodontic ligature wire. HOW TO CITE THIS ARTICLE: Sharma A, Patidar DC, et al. Mandibular Fracture in Children: A New Approach for Management and Review of Literature. Int J Clin Pediatr Dent 2019;12(4):356-359.

Microphotographic Assessment of Enamel Surface using Self-Etching Primer and Conventional Phosphoric Acid: An In vitro Study.

INTRODUCTION: Conventional acid-etching method irreversibly removes several microns of enamel surface and also involves many steps. Hence, a simplified technique that minimizes enamel loss, improves adhesion procedures, prevents saliva contamination, and saves chair time, thereby producing clinically useful bond strength, would be valuable. AIM: To assess and compare the bonding mechanism of a self-etching primer (SEP) to that of phosphoric acid on enamel of the human permanent teeth by a scanning electron microscope (SEM). MATERIALS AND METHODS: Thirty freshly extracted premolars were randomly divided into two groups of fifteen teeth each - the control group I (phosphoric acid) and experimental group II (self-etching primer). Brackets were bonded using Transbond XT adhesive on the buccal surfaces of the teeth after etching and priming according to their respective protocols. The teeth were then sectioned and the samples were subjected to a protocol of demineralization cycles. After complete dissolution of dental tissues, the specimens were gold sputter coated and evaluated under SEM. RESULTS: A characteristically uniform etch pattern was seen in the resin samples of the phosphoric acid/Transbond XT primer group, which revealed increased roughness and resin tags penetrating the demineralized enamel surface, whereas with Transbond Plus SEP, a regular resin tag distribution was observed which showed less magnitude when compared with the control group. CONCLUSION: From the study, it was concluded that Transbond Plus SEP produced an etch pattern which was more conservative than conventional phosphoric acid system.

Comparative Study of Pulp Vitality in Primary and Young Permanent Molars in Human Children with Pulse Oximeter and Electric Pulp Tester.

AIM AND OBJECTIVE: The purpose of this study was to compare the pulp testing methods (pulse oximetry and electric pulp test) in primary and young permanent teeth of children. MATERIALS AND METHODS: The study included a total of 155 children aged 4 to 15 years. Twenty children formed control group I. Study group included all healthy, 85 primary 2nd molars in group II and 85 permanent 1st molars in group III. Fifty children needing endodontics treatment formed test group IV. The readings were recorded as true positive (TP), false positive (FP), true negative (TN), false negative (FN). Based on this, the sensitivity, specificity, positive predictive value and negative predictive value were calculated for each method. The results were statistically analyzed using Chi-square test. RESULTS: On comparing pulse oximetry with electric pulp test 'p-value' was found to be 0.487 and 1.00 for groups 1 and 2 respectively and was statistically not significant. Whereas 'p-value' for groups 3 and 4 was < 0.0001 and 0.003 respectively and was statistically highly significant. CONCLUSION: The present study indicates that pulse oximetry can be used as a routine method for assessing the pulp vitality in primary, young permanent and mature permanent teeth. How to cite this article: Shahi P, Sood PB, Sharma A, Madan M, Shahi N, Gandhi G. Comparative Study of Pulp Vitality in Primary and Young Permanent Molars in Human Children with Pulse Oximeter and Electric Pulp Tester. Int J Clin Pediatr Dent 2015;8(2):94-98.