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Background: A major objective in the management of deep carious lesions involving proximal surfaces of primary molars is to control marginal leakage. This could occur due to dimensional changes or failure in the adaptation of pulp capping materials to the prepared cavity. Evaluation of microleakage is important for assessing the success of newer pulp capping materials. Introduction: Biodentine exhibits good sealing ability but possesses longer setting times and handling difficulties, which might delay the placement of the final restoration. The sealing ability of newer dual-cure calcium silicate-based material in TheraCal PT in class II cavities of primary molars is not known. Hence, the current study aimed to evaluate and compare the microleakage of Biodentine and TheraCal PT in primary molars. Materials and methods: Extracted, noncarious primary molars (n = 28) were collected, and standardized class II cavities were prepared and restored with Biodentine (group I) and TheraCal PT (group II). Following this type, IX glass ionomer cement (GIC) was placed and polished. Microleakage was assessed using the dye penetration method, and data obtained through stereomicroscopic analysis were statistically analyzed. Results: The mean microleakage score observed in group I was 2.0 ± 1.3 MPa, and in group II was 1.0 ± 1.1 MPa. Comparable sealing ability was observed between both groups (p = 0.061). Conclusion: TheraCal PT could be used as a suitable alternative to Biodentine for use in vital pulp therapeutic procedures in children to reduce the treatment time and improve sealing ability. How to cite this article: Anusha B, Shivashankarappa PG, Mohandoss S, et al. In Vitro Evaluation of Sealing Ability of Biodentine and TheraCal PT in Primary Molars. Int J Clin Pediatr Dent 2024;17(2):158-161.

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Context: The smear layer produced during the instrumentation of the root canal contains both organic and inorganic components, and it is recommended to be removed as it has a mixture of bacteria and their byproducts. Irrigants like sodium hypochlorite (NaOCl), ethylenediaminetetraacetic acid (EDTA), endodontic irrigant, citric acid, etc., possess the ability to remove the smear layer. Considering the antimicrobial effect, antiinflammatory, cavity disinfectant, nontoxicity, better taste, and aroma of herbal products, a novel approach has been introduced in the field of endodontics. Aims: To assess the efficacy of passion fruit juice in removing the smear layer and its erosive potential in root canals after instrumentation by scanning electron microscopy. Materials and methods: About 35 single-rooted premolars were divided into five groups-30% passion fruit extract (PFE), 17% EDTA, 17% EDTA + 5.25% NaOCl, 30% PFE + 17% EDTA, and saline. Following irrigation with the above irrigants, each tooth was split into two halves and examined and scored for smear layer removal (modified Torabinejad's criteria) using a scanning electron microscope. Statistical analysis: Overall comparison of the irrigant's action on removing the smear layer and their erosive potential was done using the Kruskal-Wallis test, and intergroup comparison of the irrigant action was done using the Mann-Whitney U test. All the statistical analyses were set with a significance level of p < 0.05. Results: A total of 30% PFE produced less erosion and statistically significant smear layer removal in the coronal and middle third of the root. When combined with 17% EDTA, it effectively removed the smear layer in all three-thirds of the root. Around 30% PFE + 17% EDTA is less erosive when compared to 17% EDTA + 5.25% NaOCl. Conclusion: This study revealed that 30% PFE and 30% PFE + 17% EDTA are promising irrigants as root canal disinfectants in endodontics. How to cite this article: Venkatachalamoorthi V, Shivashankarappa PG, Adimoulame S, et al. Effect of Passion Fruit Juice in Removal of Smear Layer in Root Canal of Ex Vivo Human Teeth: A Scanning Electron Microscopic Study. Int J Clin Pediatr Dent 2023;16(S-2):S190-S194.

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The eruption of teeth in newborns is a rare disorder of the oral cavity and are called 'natal teeth' when they are present at birth or 'neonatal teeth' when they erupt within the first month of life. In most of these cases, they are prematurely erupted deciduous teeth or supernumerary teeth. Supportive management should be given, to facilitate child's feeding and to prevent further complications, such as aspiration as the tooth could be mobile. This study describes a series of cases that were reported to our department, involving teeth located in the mandibular anterior region either at birth or within a few days after birth. The choice of treatment for each child was based on individual assessment of the case, considering options such as monitoring and extraction along with their associated complications.

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Introduction/background: The preventive benefits of pit and fissure sealants rely on their retention and sealing ability. The drawback of the conventional pit and fissure sealant is its poor retention due to the presence of moisture. Among the numerous pit and fissure sealants available, newer hydrophilic sealants are ideal for children. This study evaluates and compares the sealing ability of hydrophilic sealant Embrace WetBond with conventionally used glass ionomer sealant under a stereomicroscope. Materials and methods: A total of 48 extracted human premolars were randomly divided into two groups (N = 24) and sealed with Embrace WetBond and GC Fuji VII as per manufacturers' instructions. Following thermocycling, the sectioned samples were evaluated for sealant penetration, unfilled space, and total length of fissure under a stereomicroscope at magnifications 2.5×, 4×, and 5×. The values were measured in microns and in various fissure types using the "ImageJ app" to measure the sealant penetrability and sealing ability. The data recorded were statistically evaluated. Results: The penetrability of moisture-tolerant sealant was better (87.8 ± 10.7) compared to that of glass ionomer sealant (73.8 ± 15.5) (p = 0.002). Among the samples, U-type fissure patterns displayed greater penetrability (94.2 ± 6.2), whereas IK-type fissures revealed the lowest degree of penetrability (67.5 ± 7.3). Conclusion: Embrace WetBond is better than glass ionomer sealant with respect to penetrability and sealing ability under stereomicroscope hence recommended as a better sealant for pediatric clinical practice. How to cite this article: Priscilla S, Shivashankarappa PG, Mohandoss S, et al. Comparative Evaluation of Sealing Ability of Moisture-tolerant Sealant and Glass Ionomer Sealant Using Stereomicroscope: An In Vitro Study. Int J Clin Pediatr Dent 2023;16(S-1):S67-S71.

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Maxillary midline diastema is a self-correcting anomaly which in few conditions may get retained in adolescence stage due to various aetiological factors and correction of which is usually done at permanent dentition stage. The persistence of midline diastema can be predicted in mixed dentition period and necessary management could be provided at the mixed dentition period. This case report is on a novel technique using 'M' spring to correct the midline diastema in mixed dentition period.

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Introduction: Down syndrome (DS) is one of the most common genetic abnormalities, with highly variable prognosis. Oral diseases such as periodontal disease, malocclusion, mouth breathing, macroglossia, delayed teeth eruption, missing and malformed teeth, microdontia, diastema, and bruxism are common among individuals with DS. Hence, a study was planned to assess the caries experience and periodontal status of subjects with DS. Materials and Methods: A cross-sectional study was conducted among 92 DS patients in two different centers in Chennai and Pondicherry to assess the prevalence of dental caries and gingivitis, using dft/DMFT and Modified Loe and Silness Gingival Index, respectively. The subjects were examined by three trained and calibrated examiners using a pre-tested and pre-validated proforma. Data were entered in a Microsoft Excel spreadsheet and analyzed using SPSS software (version 20). Descriptive statistics were used. A value of P < 0.05 was considered significant. Results: The mean DMFT was low among male (1.47 ± 2.31) when compared to female (2.57 ± 4.57) which was found to be significant statistically. The gingival score was low among male (.85 ± 0.36) when compared to female (1 ± 1.00) which was found to be significant statistically. The mean dft among male and female were (.49 ± 1.37;.43 ± 1.09), respectively, which was found to be not significant statistically. Conclusion: Dental caries and gingival diseases are higher among children with DS. Dental caries was found both in primary dentition and permanent dentition.

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Dental caries is a global oral health problem caused due to localized demineralization of the enamel. Chemical plaque control is used as an adjuvant to mechanical plaque control in removing biofilm, thereby preventing dental caries. In recent times, there has been a renewed interest in nature-based products. This systematic review aimed to analyse the existing literature to compare the effectiveness of herbal and conventional dentifrices on prevention of dental caries. A search was done in the databases of PubMed and Google Scholar in July 2020 for the related topic. A hand search was done from the references of primary studies and other clinical trial registry sites. Randomized control trials, comparative clinical trials, and in vitro studies in which the effectiveness of herbal and conventional dentifrices on prevention of dental caries were included after review by the reviewers. The systematic search revealed a total of thirty-two publications from which ten publications were included. Five studies were clinical studies and five were in vitro studies. All the studies used microbiological analysis for the determination of cariogenic microorganisms in plaque and saliva, whereas one study used pH of plaque and saliva. Among the included studies, all studies had a high risk of bias with level 2 evidence. With the evidence available, it can be concluded that herbal dentifrices and fluoride dentifrices have similar antimicrobial activity against cariogenic microorganisms.

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BACKGROUND: Health-care workers (HCWs) are highly vulnerable to depression during an epidemic outbreak. Protecting the mental well-being of HCWs is a priority while battling with COVID-19. However, documentation on COVID-19-related depression among HCWs is scarce due to the limited availability of measuring scales. Hence, this study was purposed to develop a scale to measure depression relating to COVID-19 and evaluate its psychometric properties among HCWs. MATERIALS AND METHODS: A validation study was carried out among 320 HCWs including physicians of various medical specialties, dental specialists, and nurses in the year 2020. Exploratory factor analysis using Promax rotation with Kaiser normalization for the determination of factor structure was employed in data analysis using SPSS version 16 software. RESULTS: COVID-19 Depression Scale for HCWs (CDS-HW) demonstrated a two-component structure identified as "work-related anxiety" and "psychological distress." The mean CDS-HW score of the study participants was observed to be 23.67 ± 2.82, and the scale demonstrated good internal consistency reliability (Cronbach's alpha: 0.741). CONCLUSION: CDS-HW is a rapidly administrable, valid, and reliable tool that can be used to measure COVID-19-related depression among HCWs.

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BACKGROUND AND AIMS: Doppler renal resistive index (RI) has been studied to find its association with postoperative acute kidney injury (AKI). This study was conducted to evaluate the usefulness of preoperative RI, postoperative RI and RI variation before and after surgery expressed as a percentage (% RI) for early AKI detection in major abdominal surgery. METHODS: This was a single-centre, prospective observational trial performed in the critical care unit of an academic hospital. Eligible patients posted for major abdominal surgery under general anaesthesia using intraperitoneal approach with at least two predefined risk factors for AKI were included in the study. Renal RI was measured preoperatively and on postoperative day zero. Statistical comparisons were performed for various parameters between the AKI and the non-AKI groups. Pre- and postoperative RI receiver operating characteristics (ROC) curves were drawn and areas under the curves computed. Positive and negative predictive values, sensitivity, specificity and positive and negative likelihood ratios were calculated. RESULTS: A total of 69 subjects were enrolled, of which 14 developed AKI in the postoperative period. The mean resistive indices measured were 0.65 ± 0.09 and 0.74 ± 0.09 in the pre- and postoperative periods, respectively. The area under the ROC curve in the postoperative RI was 0.732 with 95% confidence intervals of 0.592-0.871. This most accurate cut-off value to detect postoperative AKI with sensitivity 57.1% and specificity of 85.5% was 0.77. CONCLUSION: Postoperative RI can detect early AKI after major abdominal surgery.