Evaluation of Three-Dimensional Changes in Pharyngeal Airway Following Isolated Lefort One Osteotomy for the Correction of Vertical Maxillary Excess: A Prospective Study

Impact of class II and class III skeletal malocclusion on pharyngeal airway dimensions: A systematic literature review and meta-analysis

Background

This study is a pioneer systematic review and meta-analysis aimed at comparing the influence of Class II and Class III skeletal malocclusions on pharyngeal airway dimensions. It stands as the inaugural comprehensive assessment to collate and analyze the disparate findings from previously published articles on this topic. The objective of this study was to identify published articles that compare the effects of class II and class III skeletal malocclusion on the pharyngeal airway dimensions.

Methods

An all-inclusive search for existing published studies was done to identify peer-reviewed scholarly articles that compared the influence of class II and class III skeletal malocclusion on pharyngeal airway dimensions. The search was done via five electronic databases: Cochrane Library, EMBASE, Scopus, Web of Science, and PubMed. Screening of the articles was done and the eligible studies were critically assessed using the Joanna Briggs Institute (JBI) Critical Appraisal Checklist.

Results

The initial search yielded 476 potential articles of which, nine were finally included in this study for a total of 866 patients. Three studies were of cross-sectional design and six were of retrospective study design. Following a critical analysis and review of the studies, class III skeletal malocclusion had significantly larger volume and area measurements compared to class II skeletal malocclusion.

Conclusion

Research in the field of literature has established that variations in skeletal classifications have a discernible effect on the size of the pharyngeal airways. With the advancement of skeletal malocclusions to a class III, there is an observed increase in both the volume and cross-sectional area of the airways.

Knowledge, attitude, and awareness toward orthodontic treatment among patients: A questionnaire survey

The current study's objective is to learn more about how patients, depending on their gender, perceive, feel, and know about orthodontic therapy.There was a cross-sectional survey among 100 patients to evaluate their knowledge and attitude toward orthodontic treatment. The questionnaire was prepared and circulated among patients using online google forms. The online responses were collected and tabulation of the data was done in excel sheets. Data was analysed using statistical software. Chi square test to compare the association of gender and patients knowledge regarding orthodontic treatment. In the current study 53% of the study population had visited an orthodontist. 79.6% of the patients are conscious that their teeth can be aligned properly by an orthodontist. 73.5% think that teeth should be properly positioned for a better facial appearance. According to the findings in the present study, it is evident that there is awareness and understanding regarding the orthodontic treatment among patients.

Current status of usage of ivermectin in the management of COVID

The antibacterial, antiviral, and anticancer properties of ivermectin make it a wonder drug with a wide range of possible applications. It works against a variety of microorganisms, including viruses. Ivermectin has a wide range of antiviral effects, according to in vivo research in animal models. Because ivermectin is involved in a range of biological processes, it could be a promising therapeutic candidate for viruses such as COVID-19 and other positive-sense single-stranded RNA viruses. The study aims to analyze the awareness about the current status of usage of ivermectin in management of COVID among students studying in a private dental college. A study based on questionnaire was organized among students studying in a private dental college in Tamil Nadu. The subjects were asked a series of structural questions based on the usage of ivermectin in management of COVID. The questionnaire was prepared with 10 questions. 150 individuals completed the questionnaire; all of their answers were tallied in excel and imported into SPSS. For statistical analysis, the Chi-square test was performed. Excel was used to tabulate and enter the data, and the SPSS package software was used to analyze it. The study's threshold for statistical significance was set at P < 0.05. From this study, we found that the students had limited knowledge about the usage of ivermectin for management of COVID. More studies should be conducted to widen the knowledge among the students about the current affairs of the world.

Prevalence of usage of various removable appliances among undergraduate dental students in a private dental college

The aim of the present study was to assess the prevalence of usage of various removable appliances among undergraduate dental students in private dental colleges. Ethical approval for the study was obtained from the Institutional Review Board of Saveetha Institute of Medical and Technical Sciences, Chennai, India. A dental record of patients was investigated. Data evaluation was completed and entered into Microsoft Excel. Gender distribution among the cohorts was assessed. The most commonly used appliance is Hawley's appliance (61), followed by Essix retainer (25), Begg's wrap-around retainer (23), Hawley's appliance with tongue crib (16), cantilever spring (7), splint (7), and T spring (1), respectively. The majority of the females (36) took Hawley's appliance. The difference was not statistically significant between both the arches and between the male and female population. Hawley's appliance is the most commonly used removable appliance among dental graduates.

Knowledge and awareness of celiac disease among the dental students

Consumption of gluten triggers an autoimmune disease known as celiac disease (CD). This is also referred to as nontropical sprue, celiac sprue, or gluten-sensitive enteropathy. Gluten is a protein present in wheat, barley, rye, and other grains. It is due to gluten that the dough becomes elastic and provides bread its chewy texture. The aim of this study is to assess the awareness and knowledge of CD among dental students. This survey is totally based on CD and its awareness among dental students. A survey was conducted among 100 students who are volunteers underneath. This survey contained questionnaires of CD causes, symptoms, treatment, etc., and the accrued was analyzed using SPSS statistics. The result shows that CD affects mainly the small intestine being chosen by 38.61% of students. The symptoms of CD as chronic diarrhea are chosen by 63.37%. The main cause of the disease is due to gluten chosen by 9.90%. Some of the gluten-free foods are chosen by 22.77% of students. In the Chi-square test, the association between the awareness of CD and students shows that postgraduate (PG) students are more aware than undergraduate (UG) students. However, this is not statistically significant since P > 0.05 (P = 0.088). The correlation graph says that the PGs are more aware than the undergraduates, and UGs have poor knowledge about this disease.

Estimation of wettability of topical fluoride gel on anterior and posterior teeth: An in vitro study

The surface area determination has a vital role in measuring the properties of liquid and solid substances. Fluoride is a potent remineralizing agent of the teeth. The surface area is measured using a goniometer. The main aim of this study is to estimate the wettability of topical fluoride gel on the anterior and posterior teeth surfaces. Topical acidulated phosphate fluoride (APF) gel was taken in small quantities. Anterior and posterior teeth were collected, and their superficial unaltered enamel sections were used as the surface where the contact angle (CA) is determined. The surface wettability is determined using Ossila goniometer to measure CA. Each stage was mounted on a mechanical stage of the goniometer. A calibrated microsyringe was used to dispense drops of the APF gel over the surface of the specimen Group A (anterior tooth cut section) and Group B (posterior tooth cut section). This procedure is repeated for all specimen samples. The mean of CAs of the anterior teeth (88.41°) was greater when compared with the mean of posterior teeth (80.36°) CA. P value found using the paired t-test of SPSS software is found to be 0.271 (>0.05), hence statistically not significant. The greater the CA, the lower is the degree of wettability on the teeth surfaces. The mean CA of the topical fluoride APF gel on the anterior tooth surface is greater when compared to the posterior tooth surface. This signifies that greater wettability is seen on posterior tooth surfaces.

Awareness of usage of Vicryl suture material in oral surgical procedures

Oral surgical procedures constitute a very important part in the broad scope of general dentistry. This necessitates a significant need for dental students to know about the suture materials. This study aims to assess the awareness of Vicryl suture material in dental surgical procedures. The descriptive survey was attended among 237 dental students. Results were analyzed using Microsoft Excel and using SPSS software version 23.0. The majority (96%) of the dental students were aware of Vicryl suture material. Approximately 75% and 66% knew that Vicryl suture was absorbable and braided, respectively. However, only 33% knew that Vicryl suture would get fall off in 2 weeks. According to the statistics, there is no significant difference between gender and awareness of Vicryl suture material (Chi-square; P = 0.14, not significant). Dental students have adequate knowledge about Vicryl suture material.

Awareness on three-dimensional printing of orthodontic appliances among dental students

The aim of the study was to evaluate the knowledge and awareness regarding the use of three-dimensional (3D)-printed appliances used in orthodontics among students pursuing dentistry. The distribution of the questionnaire was done using an online Google Forms link to about 100 dental students. The questionnaire compromised questions that were designed for assessing the various findings and knowledge of update, and finally, questions related to facts on various 3D-printing appliances. Among the total population, 58% of the population are aware of 3D printing used for various dental applications, whereas 42% of the population are not aware of the same. Among the total population, 58% of the population are aware of 3D printing used in dentistry, whereas 42% of the population are not aware of 3D printing used in dentistry. Inside the limits of the review, it very well may be inferred that 3D-printed machines have a rising use in the majority of the dental fields and understudies chasing after dentistry know about it. The knowledge about the basic and fundamental working and the usage of such appliances is developing among undergraduate students. Further continuing education programs can be provided to improve the same.

Surface roughness changes of two composite resin restorative materials after thermocycling

Composite is usually a mixture of two phases. The composites used in dentistry have high durability. The individual properties of each phase are important to increase the mechanical property of the composite. This study aimed to determine the surface roughness changes of two composite resin restorative materials after thermocycling. Two of the commercially available composites were chosen (RestoFill and SwissTEC). The composite disks of dimension 10 mm diameter and 3 mm height were prepared using silicone molds, and every increment was light cured for 30 s. A stylus profilometer was used to assess the surface roughness prethermocycling, and then, the disks were subjected to an integrated thermocycler (T.S-4.4) for 1000 cycles. The postsurface roughness was obtained after the thermocycling process using the same stylus profilometer. The surface parameter values before and after thermocycling of the SwissTEC sample is less than that of RestoFill. There was a significant difference between the Rz and Rq values of the two different commercially available composite materials. Thus, the present study concludes that thermocycling influenced the surface roughness of composite resin and increased the surface roughness of both the RestoFill and SwissTEC composites.

Knowledge and awareness of chronic bronchitis and its oral manifestation among dental students and practitioners

Chronic bronchitis (CB) is an inflammatory disease and is characterized by bronchial tube irritation. The bronchial tube irritation can result in the accumulation of mucus. CB is a part of chronic obstructive pulmonary disease, causing blockage of airflow and thereby problems in breathing. Cigarette smoking is of utmost importance in causing CB. Besides pollution of air and the working environment can also play a key role. The study aimed to assess and create the awareness about CB among dental students and practitioners. A cross-sectional questionnaire survey was conducted among dental students utilizing an online review entry called "Google forms." A total of 100 people were assessed using a structured questionnaire comprising 15 questions. The analysis of the result was done using the SPSS software of version 23. It has been shown that 78% of them are aware of CB. 75% of them responded that passive smokers were mostly affected by CB. Within the study limits, it was found that males who participated had increased awareness when compared to the females. The survey results showed that most of the participants were aware about CB but not its clinical features, oral manifestations, diagnosis, and treatment.

Awareness on hematological malignancies among college students

Cancers of blood arise when the abnormal blood cells undergo uncontrolled growth which outpaces the natural production of normal blood cells, interfering with the cells' normal functions. Leukemia, lymphoma, and myeloma are the three types of blood cancers. The aim of our study is to assess and create awareness of hematological malignancies among college students. A questionnaire was prepared using Google Forms based on the awareness of the Hematological malignancies disinfection methods among dental students in Chennai. It was then circulated among a certain set of participants using an online Google Form link. The participants were asked about their knowledge level regarding hematological malignancies and a majority (68.97%) were aware of the same, whereas 27.59% were not aware and the rest (3.45%) were not sure. When asked about how dental care detects various hematological malignancies, 10.34% of the participants replied as "patient speaks about any abnormality," 75.86% replied as "oral manifestations," and 13.79% replied as "dentists cannot detect hematological malignancies." From the above results and discussion, we can come to the conclusion that most of the dental students who participated in the survey are aware of hematological malignancies and its various types.

Knowledge and awareness about fibrodysplasia ossificans progressiva among dental students

Fibrodysplasia ossificans progressiva (FOP) is a rare genetic disorder which is autosomal dominant distinguished by congenital malformations of large toes and flare ups, etc. It is a disorder of connective tissue, with heterotopic ossifications seen with skeletal muscles, tendons, and cartilages and also called as Stone man disease, myositis ossificans, and Munchmeyer disease. The main objective of the study is to assess and create the awareness about FOP among dental students. An online-based survey was conducted among 103 dental students, undergraduates and postgraduates. About 20 questionnaires were prepared and circulated among the students through the "Google forms" across Chennai. A survey questionnaire asked about the knowledge of fibrodysplasia, its causes, treatment, and diagnosis was enquired. Thus, the data obtained were analyzed statistically using the SPSS software. In our study, about 64% were undergraduates and 35% of them were postgraduates. About 66% of the participants were aware of fibrodysplasia and 32% of them were not aware. Most of the undergraduate students were more aware of fibrodysplasia (40%) when compared to postgraduates (29%). However, this is statistically not significant. Fibrodysplasia ossificans reported to have a high incidence in 1 in 2 million people worldwide. Hence, an early diagnosis of this disorder can prevent further complications. Although the survey has provided significant knowledge about fibrodysplasia, awareness still has to be created among dental students.

Dentist perspective on knowledge and practice toward Ellis class 3 tooth fracture: A survey

Traumatic dental injuries otherwise referred to as dental trauma is common in dental practice. The etiology of dental trauma is mostly falls and accidents in case of children and young adults. The treatment provided should be quick and effective which depends on the extent of the dental trauma, the injury might expose enamel, dentine and pulp of the affected teeth. Ellis class 3 involves all the 3 layers mentioned, so there should be quick measures taken. A survey was conducted among dental practitioners to assess their knowledge and practice experience about Ellis class 2 fracture. Detailed questionnaire was created with questions about Ellis class 3 tooth fracture and was circulated to 100 dental practitioners in Chennai, Tamilnadu through google forms. The collected data was analyzed using SPSS software. The knowledge and practice of Ellis class 3 trauma was 85%, the dental practitioners have adequate knowledge about the various clinical, diagnostic aids used and are aware to provide the correct treatment for each case. Based on the responses from the dental practitioners there is not much practice of Ellis class 3 dental trauma in their dental practice. Thus the present study concludes that the knowledge and practice of Ellis class 3 teeth fracture is good among dental practitioners and the various aspects are well known by dentists.

Knowledge, attitude, and awareness regarding the use of composites for orthodontic purposes among dental students

The aim of the study was to determine the knowledge, attitude, and practice regarding the use of composites for orthodontic purposes among dental students. The questionnaire was designed to evaluate knowledge, attitude, and awareness. Google Forms was used for the distribution of questions. This is a questionnaire survey based on knowledge, attitude, and awareness regarding the use of composites for orthodontic purposes among dental students; 86% of them had awareness regarding the use of composites for orthodontic purposes, wherein the remaining 14% were not aware. Considering the limitations of the study groups, we can conclude that the knowledge, attitude, and awareness regarding the use of composites for orthodontic purposes among dental students were good. However, there is still a lack of knowledge in few perspectives which can be overcome with continuous dental education programs and lectures.

Awareness about Patterson syndrome among dental students

The aim is to create awareness about Patterson syndrome among dental students. Patterson-Stevenson-Fontaine syndrome is a very rare condition marked by irregular facial bone and tissue growth (mandibulofacial dysostosis) as well as limb abnormalities. A recessed jaw (retrognathism), cleft palate, and external ear defects are all possible symptoms of this disorder. A total of 112 undergraduate dental students participated in a longitudinal cross-sectional sample. To assess college students' awareness about Patterson syndrome, a self-administered, closed-ended questionnaire was developed and distributed. The only language allowed was English. The results were analyzed in SPSS software version 23. 10.71% of females and 14.29% of males were aware about Patterson syndrome. 32.14% of females and 38.39% of males were aware that Patterson syndrome was a rare adrenal disorder. We can conclude that very few of the population which was only 25% of the dental students were aware about Patterson syndrome and this survey helped in creating awareness about this syndrome.

Knowledge, attitude, and awareness of biocompatibility of orthodontic materials among dental students

The aim of this study is to find the knowledge, attitude and awareness of biocompatibility of orthodontic materials among dental students.A survey of 13 questions was created using Google Forms. The questions on the survey cover a wide range of topics including the awareness of cytotoxicity of orthodontic materials, their corrosive potential, ways of preventing corrosion and release of subsequent substances, and various means by which these physiological actions occur. This survey was circulated among dental undergraduate students and the responses recorded were then transferred to SPSS software. Here we conducted descriptive analysis to produce a pie chart and Chi square test to determine the association and statistical significance.The results were noted and examined in the form of bar graphs. The p value for this study was found to be 0.01, which makes this study statistically significant. The awareness about the biocompatibility of orthodontic materials among dental students was found to be low. Continuing dental education programs can be conducted to constantly improve the knowledge regarding the judicious and ecofriendly use of all newly available dental materials.

Knowledge, attitude, and awareness on the protocols and trends in orthodontic retention among dental students

This survey aimed at evaluating the knowledge and awareness regarding the various retention protocols used in orthodontic practice. A survey has been conducted among the dental students by circulating 15 close-ended questions online to analyze the data collected on the protocols and trends in orthodontic retention. The male and female distribution among the study population was evaluated, and the retention protocols used were computed; statistical analysis was performed using SPSS software. Ninety-four percent accepted that Hawley retainers are predominantly used compared to fixed retainers. Eighty-seven percent agreed that they aim at a more stable dentition by the completion of orthodontic treatment. The Chi-square test on the knowledge of respondents on the permanent retention to be followed after orthodontic treatment to close generalized spacing is statistically not significant, P = 0.056. Within the considered limitations, it is clear that there is awareness among the dentists regarding the use of a retention appliance to ensure stability at the finish of orthodontic treatment. But the protocol for the same remains variable. Further studies can be performed to identify the effectiveness of each of the different retention protocols and their indications in various cases.

Awareness and practice pertaining to the use of digital imaging for orthodontic purposes among undergraduate dental students

The current study aimed at evaluation of the awareness of undergraduate dental students regarding the use of digital imaging that are used for orthodontic diagnosis and treatment. An online survey using google forms was conducted among the undergraduate dental students as a part of this study setting. The sample size of participants was 109. The survey was composed of a set of 14 questions including demographics. Ethical clearance was obtained from the Institutionalized ethical committee. SPSS software was used for data analysis and descriptive statistics. Among the entire population, 46.2% participants said that they would be using digital dental imaging during their practices and in their career and the remaining 53.8% participants said that they would not be using digital imaging due to various reasons. This study found out that undergraduate dental students have an average level of awareness regarding the use of digital dental imaging that are used for orthodontic diagnosis and treatment.

Comparison of human and animal hair - A microscopical analysis

For nearly a century, hairs of animals and humans were employed in forensic research. It is found to be stable in certain environments, and thus, they are frequently retrieved at scenes of crime, and it is important to verify whether they are either human or animal. The present research was done at comparing the morphological differences among human hair and animal hair using a stereomicroscope. Samples of hair forming the outer coat of some autochthonous domestic and human remnants were evaluated in this study. Long strands of guard hair shaft were investigated by stereomicroscope accordingly. Microphotographs were taken in an iPad camera. The microscopic characteristics of cat hair samples showed the presence of small spikes on the surface, whereas the human hair sample showed a smooth appearance with no irregularities. The microscopic analyses of the human hair sample and cat hair sample under stereomicroscope suggest hair samples can be used as forensic evidence in crime scene investigation. The comparison of both the hair samples was done, and the differences were significantly evident.

Choice of restorative materials by dentists in Class III dental caries in primary maxillary lateral incisors in 3-6-year-old children: A retrospective study

Early childhood caries has an intricate etiology and it requires a helpless tooth surface, fermentable starches, and cariogenic microorganisms throughout some undefined time frame to start the carious cycle. Tooth-hued materials gained popularity in recent years for reestablishing primary and youthful blended dentitions. Hence, the main aim of this study was to investigate the choice of restorative materials in Class III dental caries in primary maxillary lateral incisors in 3-6-year-old children. Data collected from the records of the children 3-6 years of age for the choice of restorative materials of primary maxillary lateral incisors between September 2020 and February 2021 were included in the study. Retrospective study data were collected through the software DIAS and data analysis was carried out using Chi-square tests. Variation in the percentage of children who underwent restoration utilizing strip crowns was the highest within 3-4 years (38.26%) when compared to light composite restorations (LCR) (14.9%), whereas the least preferred restoration was glass-ionomer cement (5.37%) which was noted statistically significant. Considering the age group of 5-6 years preferred form of restoration was LCR (19.80%) when compared to strip crown (17.79%), whereas 4.70% of the treatment cases were utilized for glass-ionomer cement restorations. Strip crowns are a more predominantly used choice of restorative material in Class III dental caries in primary maxillary lateral incisors in between 3- and 6-year-old children.

Evaluation of quality of obturation in 6-9-year-old children

The effectiveness of root canal therapy is dependent on the quality of obturation. The objective of the current study was to evaluate the obturation quality in pediatric patients of age 6-9 years reporting for pulpectomy treatment. Among the comprehensive data of patients attending Saveetha Dental College, a retrospective analysis of all the patients referred for pulpectomy was extracted. SPSS software version 19 was used to analyze the data gathered. Data were statistically evaluated using the Chi-square test. RESULTS: In the present study carried out, it was observed that the most frequent quality of obturation was normal (12.36%) and it is higher in the 7-year-old age category. The second frequent quality of obturation was voids (6.55%) and its higher in the 9-year-old age category. The results obtained were positively significant (P < 0.05). The most frequent quality of obturation was normal and it is higher in the 7 years category. The second frequent quality of obturation was voids with higher level in the 9 years category.

Association of Ellis class 1 fracture in children of age 6-12 years

Trauma is a well-known issue in children, and its prevalence is on the rise more than that of dental caries in children. The objective of the study is to evaluate the association of Ellis class 1 fracture in children between 6 and 12 years. This study includes 45 males and 55 female patients of age 6-12 years. All the data regarding the study population was extracted from Dental Information Archiving Software-all patient records from management. The data collected were tabulated and imported to SPSS software. Statistical analysis was done using Chi-square tests. Ellis class 1 fracture ordinarily is observed to affect the central incisors. Majority of school children of 6-12 years of age were more vulnerable to dental trauma. There is a strong association between Ellis class 1 fracture in children of 6-12 years of age.

Average time in between appointments for multivisit pulpectomy in patients reported to a university dental hospital

Complete removal of the infected coronal and radicular pulp tissue along with obturation of the canal space with suitable medication is defined as pulpectomy. The most common indication for pulpectomy is a tooth with irreversible pulpitis which shows symptoms of nocturnal pain and abscess. To determine the average time in appointments for multivisit pulpectomy in patients reported to a university dental hospital. It is planned as a retrospective analysis of the case records of patients who were treated as two visit pulpectomy procedures in a university dental hospital, India. The study concluded that in the majority of the situations the average time in between appointments for multivisit pulpectomy was found to be within 1 week.

Evaluation of difficulty index of impacted mandibular third molar extractions

When compared to other teeth, third molars have a greater rate of impaction. Third molars that have been impacted are commonly encountered in dental practice, and it is the reason for complications in third molar surgery. The most commonly performed surgical procedure by dental practitioners is the third molar extraction. Despite a well-planned surgical approach, there are complications in lower third molar extractions. This study analyzes the expected difficulty during surgical removal of lower third molars that are impacted. This study analyzes the expected difficulty during the removal of impacted lower third molars by surgery. With the data from our dental institution database, the difficulty index by Pederson was used to evaluate the difficulty level of the extraction. Using SPSS, data were analyzed and results were obtained. Among impacted left mandibular third molars (38), minimal difficulty in 20.60% of the extractions, moderate difficulty in 29.58% of the extractions, and most difficulty in 2.77% of extractions were present. Among impacted right mandibular third molars (48), minimal difficulty in 18.80% of the extractions, moderate difficulty in 25.78% of the extractions, and most difficulty in 2.47% of extractions were present. According to our study, there is moderate difficulty in impacted lower third molar surgery, and it depends on factors such as systemic status and patient's age, periodontal condition, and complexity of tooth position in the dental arch.

Effect of thermocycling on the flexural strength of two different composite filling materials: An in vitro study

Flexural strength is the bend strength or stress which causes failure in bending of the material. Composite is the widely used restorative material in the era of esthetic dentistry as it provides better esthetic and mechanical support for both posterior and anterior teeth. The term "thermocycling" refers to the process of changing temperatures in the mouth. Thus, the aim of the study was to determine the effect of thermocycling on flexural strength in two different composite filling materials. Twelve samples of packable type composite filling material, among which four samples prepared were from Restofill l (Group 1) and four were prepared from Ivoclar Vivadent (Group 2) for the study. Bar-shaped composite resin specimens were prepared with dimensions of 2 mm × 2 mm × 25 mm. Then, the eight samples were subjected to a thermocycling process and four left as control. This was followed by the determination of maximum force by a universal testing machine, and then, the collected data were used to determine flexural strength using the formula. The determining flexural strength was analyzed using SPSS version 23.0 by Independent sample t-test. The mean flexural strength of thermocycled Restofill composite filling material is 6.73, whereas the nonthermocycled Restofill sample showed 5.58 and the mean flexural strength of thermocycled Ivoclar Vivadent composite filling material was 5.08. The difference was not statistically significant with P = 0.978 >0.05. The current study concludes that the flexural strength of the Restofill composite (Group 1) was higher than the Ivoclar composite (Group 2). Hence, thermocycling affects the flexural strength of composite resin.

Comparison between conventional and micro-assisted periodontal surgery: Case series

Microsurgery is a minimally invasive procedure that uses a surgical microscope, specially designed equipment, and suture materials. Even though this equipment and expertise of numerous surgeries are required to meet patient esthetic reckoning, doctors must be ready to invest time and effort into becoming familiar with novel surgical methods and devices. The ambition of this case series is to compare conventional macro surgery and microsurgery in terms of clinical approach. This study included four cases, two flap surgery, and two root coverage. Clinical parameters for root coverage, increase in keratinized tissue (KT), gain in clinical attachment level (CAL) and complete root coverage (CRC), dentin hypersensitivity index-Schiff's index and for flap surgery, probing depth, clinical attachment level. Healing and pain analysis were done. There was no significant difference seen between conventional and clinical outcomes of a microsurgical technique such as clinical attachment level, probing depth, increase in KT, gain in clinical attachment level (CAG), and CRC, dentin hypersensitivity index-Schiff's index. When patient-based outcomes such as healing index and Visual Analog Scale, a significant difference was seen. If a microsurgical method is used instead of a traditional macroscopic approach, the early healing index can be significantly improved and there will be less postoperative pain.

Expectation of treatment outcomes in complete denture wearers

Edentulism is a condition associated with age, and the outcome of prosthodontic treatment depends on a number of dental and nondental factors. In complete denture therapy, patient satisfaction is a key objective and various other variables affect this parameter. The ability to foresee its preferences may assist dentists in making informed treatment selections. The study purpose is to assess the expectations of treatment outcomes in complete denture users. For the study, all cases referred for total denture therapy during September 2020 and February 2021 were included. Both new and old denture users completed questionnaires on factors such as retention, mastication, phonetics, esthetics, and comfort. Excel was used to compile the data, which was then imported into SPSS for statistical analysis. The study's statistical significance level was established at P < 0.05. Male patients over the age of 60 years wearing dentures were very common. Denture wearers were highly prevalent in the age group of >60 years among male patients. Retention, esthetics, and phonetics are highly satisfied in existing denture wearers and mastication is highly satisfied in new denture wearers. The comfort factor is commonly satisfied in both the denture wearers. The results were statistically significant with a P = 0.05. Clinician can plan their treatments more effectively if they are aware of the treatment's expectations.

Association of malocclusion and trauma in children: A retrospective study

Malocclusion is considered one of the most prevalent oral issues and it is considered one of the major risk factors for dental trauma. Dental trauma is a distressing experience for children, and they can have long-term physical, esthetic, and psychological effects. Hence, the main aim of this retrospective study is to evaluate the association between dental trauma and malocclusion in children. Four hundred and fifty patients between the age of 8 and 17 years during March 1, 2020-February 31, 2021, with Ellis classes 1, 2, and 3 were included in the study. Association of type of fracture with gender and malocclusion was calculated using Chi-square test. In case of Ellis class 1 fracture, 9.1% of the patients had no malocclusion, 21.8% of them had crowding, 11% of them had spacing, and 21.8% of them had anterior protrusion. In case of Ellis class 2 fracture, 4.3% of them had no malocclusion, 6.4% of them had crowding, 2.8% of them had spacing, and 3.6% of them had anterior protrusion. In case of Ellis class 3 fracture, 2.7% of them had no malocclusion, 6.4% of them had crowding, 4.6% of them had spacing, and 4.6% had anterior protrusion. The results were not statistically significant. Children with anterior protrusion and anterior crowding are more prone to severe damage during traumatic dental injuries.

Knowledge and awareness of the Klinefelter Syndrome among the dental students

The presence of one or more extra X chromosomes in a male causes Klinefelter Syndrome (KS). KS affects 1 in 500-1 in 1000 men, while about half remain undiagnosed. KS is characterized by huge stature, increase in arm length, the feminine distribution of adipose tissues (including gynecomastia), less or pubic hair, infertility, hypotonia, reduced size of penis and less than average verbal IQ, struggle in learning and requirements for less specified speech therapy. KS is a primary testicular insufficiency with high levels of gonadotropin caused by a lack of pituitary gland feedback. The aim of the study is to assess the knowledge and awareness of the KS among the dental students. This cross-sectional survey was conducted among dental students of a private dental hospital. To evaluate the knowledge and awareness of the participants about KS, a self-administered questionnaire consisting of 10 questions was prepared. Percentage analysis and frequency analysis and percentage analysis were performed. A Chi-square test was done to assess the correlation using the SPSS software. In our study, most of the participants were aware of the KS. They also knew that the KS is caused due to the additional X chromosome. We would like to conclude that the dental students were much aware about the Klinefelter and they also had a thorough knowledge about it.

Evaluation of flexural strength of bulk-fill composite resin after immersion in fruit juices: An in vitro study

Resin-based composites are increasingly employed in dental restorations due to their esthetics. Flexural strength is the characteristic feature of a substance, and it can be described as the stress present in the material just before it renders in a flexure test. The purpose of this study was to determine the flexural strength of a bulk-fill composite following immersion in fruit juices. Ten samples of bulk-fill type composite filling material were created, with four samples from Restofill (Group 1) and four samples from Ivoclar Vivadent (Group 2). Out of which, four specimens of each brand were included for immersion in fruit juices; two specimens were kept as control. The eight samples were put through a flexural strength test, with four remaining as controls, before being measured for maximum force and displacement on the Instron E3000 universal testing equipment. SPSS version 23 (IBM SPSS Statistics for Windows, Version 23.0. Armonk, NY: IBM Corp.) was used to examine the calculated flexural strength. The composite Ivoclar has a mean flexural strength of 20.52, whereas the composite Restofill has a mean flexural strength of 20.55. The P value for the independent sample t-test between the two groups, Ivoclar and Restofill, was 0.089 (>0.05), which is statistically insignificant. It is clear from this research that the bulk-fill composite resin Ivoclar has a low flexural strength when compared to the sample Restofill after immersion in fruit juices.

Awareness on current status of usage of ritonavir in the management of covid among dental students

Ritonavir's pharmacodynamics raise questions regarding whether medication concentrations high enough to block the SARS-CoV-2 proteases can be obtained. Ritonavir may have a therapeutic benefit at any stage of the disease, although pharmacodynamic issues and the absence of clinical benefit data among hospitalized COVID-19 patients cast doubt on this claim. To study the awareness on current status of usage of ritonavir in the management of COVID among dental students. This study, which is survey-based, involved a sample of 100 individuals and was carried out on the website Survey Planet. The study included undergraduate and graduate dental students. The dental students were given a questionnaire containing 10 questions. Their responses were gathered. The number and percentage were used to summarize the data. Dental students from Chennai showed adequate knowledge of COVID-19 in the medical environment. Postgraduate students were more aware about the current status of usage of Ritonavir for COVID-19. This study demonstrates the urgent necessity for all health-care workers to regularly implement educational interventions and training program on infection control procedures for COVID-19.

Evaluation of patterns in mandibular fractures among South Indian patients

The objective of this study is to evaluate the predicted mandibular fracture pattern among a sample of patients visiting a dental hospital in Chennai, India based on patient demographics. This retrospective analysis involved 46 patients out of which 39 were male and 7 were female who were referred to the Oral Surgery Clinic, Chennai. The medical records and orthopantograms for these 46 patients who received treatment for fractures of the mandible from June 2019- March 2020 were reviewed. Parameters such as age, gender, pattern of distribution, type of mandibular fracture, combination of the fracture and treatment done, were evaluated and assessed by one examiner and reviewed by 2 independent investigators. Data shows that the angle region to be the most common area to be affected (31.67%), accompanied by parasymphyseal region (28.33%), condylar region (13.33%), dento-alveolar region ( 10%), body (8.33%), symphyseal region ( 6.67%) and finally the coronoid region ( 1.67%). Data analysis also revealed that 84.78% of all patients with fractures of the mandible were male and 34.78% of all patients were in the age group of 21-30 years. Most fractures presented with a single fracture site (60.87%), and among combinations of fractures, fractures of parasymphyseal region along with angle region (41.67%) were seen more commonly. Pearson's Chi Square Test was used to determine the association linking the type of mandibular fracture and treatment modality used and p value was < 0.05, which was considered statistically significant. Thus, the patterns of mandibular fractures delineate a significant occurrence of angle fractures among mandibular fractures, commonly seen along with fractures of parasymphyseal region and occurring with a significant male predilection.