Mucocele is a common salivary gland disorder that can appear on the dorsal surface of the tongue, lacrimal sac, paranasal sinuses, and oral cavity. Mucocele results in alteration of the minor salivary glands due to a mucous accumulation causing limited swelling. Two histological types of mucoceles exist, namely extravasation and retention. Lower lip is the most common site of occurrence of these lesions in the oral cavity and the most probable cause is trauma or habits of lip biting. This report presented a 6½-year-old female child patient having mucocele on the inner side of her lower lip due to fall while playing, which resulted difficulty in mastication and speech. Treatment performed was conventional surgical excision followed by removal of the minor salivary glands.
{"title":"Mucocele in lower lip as a result of trauma","authors":"Deepak Chauhan, S. Thakur, K. Verma, A. Justa","doi":"10.4103/IJDS.IJDS_55_20","DOIUrl":"https://doi.org/10.4103/IJDS.IJDS_55_20","url":null,"abstract":"Mucocele is a common salivary gland disorder that can appear on the dorsal surface of the tongue, lacrimal sac, paranasal sinuses, and oral cavity. Mucocele results in alteration of the minor salivary glands due to a mucous accumulation causing limited swelling. Two histological types of mucoceles exist, namely extravasation and retention. Lower lip is the most common site of occurrence of these lesions in the oral cavity and the most probable cause is trauma or habits of lip biting. This report presented a 6½-year-old female child patient having mucocele on the inner side of her lower lip due to fall while playing, which resulted difficulty in mastication and speech. Treatment performed was conventional surgical excision followed by removal of the minor salivary glands.","PeriodicalId":56210,"journal":{"name":"Indian Journal of Dental Sciences","volume":"13 1","pages":"122 - 124"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46536622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-04-01DOI: 10.4103/IJDS.IJDS_212_20
Akaljot Kaur, Harinder Kuckreja, S. Kaura, Naveen Oberoi, Jaswinder Kaur, J. Arora
Purpose: The aim of this in vivo study is to compare the variation in implant stability quotient (ISQ) values of implants using resonance frequency analysis (RFA) to access the immediately loaded (within 24 h) implants at different time intervals using Penguin RFA system. Materials and Methods: Ten Nobel Replace Tapered RP implants were placed in posterior mandible region of patients. Patients were included in the study after fulfilling the inclusion criteria. Prior to enrolling in the study, thorough information about the procedure was provided to the patients, and written consent was obtained for the same. Immediate loading was done within 24 h using tooth-colored self-cure acrylic resin. Penguin RFA System was used to measure the ISQ of dental implants. The ISQ values were recorded immediately after implant placement, after 4 weeks, after 8 weeks, and after 12 weeks. Results: The mean ISQ values of the immediately loaded implants at the time of placement were 82.60, after 4 weeks were 80.60, after 8 weeks were 83.70, and after 12 weeks were 87.10. There was a statistically significant difference between the ISQ values at the time of placement of implants and after 12 weeks. Conclusion: This study concluded that immediate loading in posterior mandible single tooth region is a safe and predictable option.
{"title":"Evaluation of variation in implant stability quotient at different time intervals after immediate loading in the posterior mandible using penguin resonance frequency analysis system","authors":"Akaljot Kaur, Harinder Kuckreja, S. Kaura, Naveen Oberoi, Jaswinder Kaur, J. Arora","doi":"10.4103/IJDS.IJDS_212_20","DOIUrl":"https://doi.org/10.4103/IJDS.IJDS_212_20","url":null,"abstract":"Purpose: The aim of this in vivo study is to compare the variation in implant stability quotient (ISQ) values of implants using resonance frequency analysis (RFA) to access the immediately loaded (within 24 h) implants at different time intervals using Penguin RFA system. Materials and Methods: Ten Nobel Replace Tapered RP implants were placed in posterior mandible region of patients. Patients were included in the study after fulfilling the inclusion criteria. Prior to enrolling in the study, thorough information about the procedure was provided to the patients, and written consent was obtained for the same. Immediate loading was done within 24 h using tooth-colored self-cure acrylic resin. Penguin RFA System was used to measure the ISQ of dental implants. The ISQ values were recorded immediately after implant placement, after 4 weeks, after 8 weeks, and after 12 weeks. Results: The mean ISQ values of the immediately loaded implants at the time of placement were 82.60, after 4 weeks were 80.60, after 8 weeks were 83.70, and after 12 weeks were 87.10. There was a statistically significant difference between the ISQ values at the time of placement of implants and after 12 weeks. Conclusion: This study concluded that immediate loading in posterior mandible single tooth region is a safe and predictable option.","PeriodicalId":56210,"journal":{"name":"Indian Journal of Dental Sciences","volume":"13 1","pages":"87 - 92"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42856971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Background: Various environmental factors have been reported to play key role in the development of oral squamous cell carcinoma (OSCC). A lesser known risk factor of oral cancer in India is the uncontrolled use of areca nut chewing. In North-East India, Areca nut, locally called as “Tamol” in Assam, is raw betel nut, lime and betel leaf without tobacco, which are more effective as compared to dried which can be the important contributing factor for OSCC. Objectives: The aim of the study was to detect the association between XRCC1 polymorphisms and increased risk of OSCC in tamol chewers population in Assam, India. Methods: 50 OSCC patients, 50 tamol chewers and 50 controls were enrolled in the study. XRCC1 Arg399Gln polymorphisms were determined by using polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). Results: There was a significant association for XRCC1 codon 399 (Arg/Gln+Gln/Gln) (p<0.05; OR=1.909, CI= 0.8622- 4.227) with the wild type in cancer sample as compared with control sample. Similarly, the positive association for 399G/G (p<0.05; OR =2.842, CI = 0.919-8.79) genotypes with oral carcinoma and control sample. In case of tamol chewers, the AA genotype was found to be associated with 2-fold (OR- 2.25, CI= 0.709-7.14) increase risk of developing oral cancer while GA+AA genotype was associated with one and half fold (OR-1.62, CI=0.7354- 3.568) risk of developing oral cancer. Conclusions: Based on these results, the XRCC1399G>A genotype could be used as a useful molecular biomarker to predict genetic susceptibility in tamol chewers population and its susceptibility to develop OSCC.
{"title":"Association of X-ray repair cross-complementing group 1 Arg399gln polymorphisms with the susceptibility to develop oral squamous cell carcinoma in tamol chewer's population in Assam, India","authors":"Lhakit Lepcha, M. Sarma, A. Kataki, B. Unni","doi":"10.4103/IJDS.IJDS_60_20","DOIUrl":"https://doi.org/10.4103/IJDS.IJDS_60_20","url":null,"abstract":"Background: Various environmental factors have been reported to play key role in the development of oral squamous cell carcinoma (OSCC). A lesser known risk factor of oral cancer in India is the uncontrolled use of areca nut chewing. In North-East India, Areca nut, locally called as “Tamol” in Assam, is raw betel nut, lime and betel leaf without tobacco, which are more effective as compared to dried which can be the important contributing factor for OSCC. Objectives: The aim of the study was to detect the association between XRCC1 polymorphisms and increased risk of OSCC in tamol chewers population in Assam, India. Methods: 50 OSCC patients, 50 tamol chewers and 50 controls were enrolled in the study. XRCC1 Arg399Gln polymorphisms were determined by using polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). Results: There was a significant association for XRCC1 codon 399 (Arg/Gln+Gln/Gln) (p<0.05; OR=1.909, CI= 0.8622- 4.227) with the wild type in cancer sample as compared with control sample. Similarly, the positive association for 399G/G (p<0.05; OR =2.842, CI = 0.919-8.79) genotypes with oral carcinoma and control sample. In case of tamol chewers, the AA genotype was found to be associated with 2-fold (OR- 2.25, CI= 0.709-7.14) increase risk of developing oral cancer while GA+AA genotype was associated with one and half fold (OR-1.62, CI=0.7354- 3.568) risk of developing oral cancer. Conclusions: Based on these results, the XRCC1399G>A genotype could be used as a useful molecular biomarker to predict genetic susceptibility in tamol chewers population and its susceptibility to develop OSCC.","PeriodicalId":56210,"journal":{"name":"Indian Journal of Dental Sciences","volume":"13 1","pages":"73 - 79"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45992555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rupandeep Kaur Samra, A. Nirola, A. Verma, A. Nagpal, Malvika Thakur
Background: On account of the pandemic SARS-CoV-2 (COVID-19), education in higher institutes was strongly affected and they were shut down. The education shifted from “face-to-face” learning to online learning in the dental universities. The aim of this study was to assess the students' perspective on the implementation of online learning due to COVID-19, using a questionnaire-based survey in India. Materials and Methods: The authors sent out an electronic survey to the undergraduate dental students from October 17, 2020 to October 25, 2020. The online questionnaire had a combination of multiple-choice, Likert scale, and open-ended questions which gave insight into the demographics, access to technological sources, didactic benefit, study habits, perceived issues with e-learning, conduction of examinations during the pandemic period, and their mental health. Students were also asked for their views on the inclusion of online learning in the future curriculum. Qualitative data was expressed as number and percentage. A comparison was performed using Chi-square test. Kruskal-Wallis test was done for Likert scale questions and Bonferroni test was used for post hoc comparisons. Results: Among 2319 dental students, 63.9% exclusively used smartphones and 8.5% used laptops for classes. The rest of the students used both devices. To access online resources, about 2262 (97.5%) had Internet connection. Only 943 students (40.7%) did not encounter any difficulty while engaging in online learning. About 1466 students (63.2%) appeared for examinations. About 1261 students appeared offline for both theory and practical examinations. Fifty-five percent of the participants felt offline examinations to be a better alternative. About 69.6% of students preferred “face-to-face” learning instead of solely online learning. Nearly 19.4% of students wanted online education to be continued, while 28.5% wanted to keep both offline and online courses in the future curriculum. Most frequently encountered problems were difficulty in adjusting to new learning styles, having to perform responsibilities at home, and poor communication between educators and learners. Conclusion: Students showed a little reticent attitude towards on the implementation of online learning and were hopeful of engaging in online learning after improvisation in the future curriculum.
{"title":"Dental students' Perception on the impact of E-learning in continuing dental education during the current pandemic scenario","authors":"Rupandeep Kaur Samra, A. Nirola, A. Verma, A. Nagpal, Malvika Thakur","doi":"10.4103/ijds.ijds_14_21","DOIUrl":"https://doi.org/10.4103/ijds.ijds_14_21","url":null,"abstract":"Background: On account of the pandemic SARS-CoV-2 (COVID-19), education in higher institutes was strongly affected and they were shut down. The education shifted from “face-to-face” learning to online learning in the dental universities. The aim of this study was to assess the students' perspective on the implementation of online learning due to COVID-19, using a questionnaire-based survey in India. Materials and Methods: The authors sent out an electronic survey to the undergraduate dental students from October 17, 2020 to October 25, 2020. The online questionnaire had a combination of multiple-choice, Likert scale, and open-ended questions which gave insight into the demographics, access to technological sources, didactic benefit, study habits, perceived issues with e-learning, conduction of examinations during the pandemic period, and their mental health. Students were also asked for their views on the inclusion of online learning in the future curriculum. Qualitative data was expressed as number and percentage. A comparison was performed using Chi-square test. Kruskal-Wallis test was done for Likert scale questions and Bonferroni test was used for post hoc comparisons. Results: Among 2319 dental students, 63.9% exclusively used smartphones and 8.5% used laptops for classes. The rest of the students used both devices. To access online resources, about 2262 (97.5%) had Internet connection. Only 943 students (40.7%) did not encounter any difficulty while engaging in online learning. About 1466 students (63.2%) appeared for examinations. About 1261 students appeared offline for both theory and practical examinations. Fifty-five percent of the participants felt offline examinations to be a better alternative. About 69.6% of students preferred “face-to-face” learning instead of solely online learning. Nearly 19.4% of students wanted online education to be continued, while 28.5% wanted to keep both offline and online courses in the future curriculum. Most frequently encountered problems were difficulty in adjusting to new learning styles, having to perform responsibilities at home, and poor communication between educators and learners. Conclusion: Students showed a little reticent attitude towards on the implementation of online learning and were hopeful of engaging in online learning after improvisation in the future curriculum.","PeriodicalId":56210,"journal":{"name":"Indian Journal of Dental Sciences","volume":"13 1","pages":"61 - 72"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43241063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-04-01DOI: 10.4103/IJDS.IJDS_119_20
S. Madan, Richa Verma, Gul Mathur
Background: Healthy and well-functioning teeth in all phases of life is a necessity. Teeth help in proper mastication of food as well as in word pronunciation. It gives fullness to the face, thereby helping in the social appearance of a person. Oral health and systemic health are interconnected. Past studies indicate that oral diseases cause or increase the severity of noncommunicable diseases. The general public is unaware of this connection. Thus, the present research work was planned to assess the oral hygiene practices of students and their awareness for maintenance of oral health. Research Methodology: The present survey was conducted among 510 students (135 boys and 335 girls) in the age group of 17–30 years studying in Dayalbagh Educational Institute. Data were collected through a questionnaire adapted from the standard tool of oral health questionnaire by the WHO. Results and Discussion: The result of the present study showed that 93% of the students were using toothpaste and toothbrush for cleaning teeth, but only 31% and 2% of the students were using other measures such as mouthwash and floss. Data also showed that only 44% of the students brush twice a day and only 27% visit dentist for routine checkup. Conclusion: Majority of the students were aware of the linkage between oral health and systemic health. Thus, it is essential to organize oral health education program at mass level to create awareness in public so that not only their oral health but also their general health can be improved.
{"title":"Knowledge and practices of oral hygiene among undergraduate students of dayalbagh educational institute, Agra","authors":"S. Madan, Richa Verma, Gul Mathur","doi":"10.4103/IJDS.IJDS_119_20","DOIUrl":"https://doi.org/10.4103/IJDS.IJDS_119_20","url":null,"abstract":"Background: Healthy and well-functioning teeth in all phases of life is a necessity. Teeth help in proper mastication of food as well as in word pronunciation. It gives fullness to the face, thereby helping in the social appearance of a person. Oral health and systemic health are interconnected. Past studies indicate that oral diseases cause or increase the severity of noncommunicable diseases. The general public is unaware of this connection. Thus, the present research work was planned to assess the oral hygiene practices of students and their awareness for maintenance of oral health. Research Methodology: The present survey was conducted among 510 students (135 boys and 335 girls) in the age group of 17–30 years studying in Dayalbagh Educational Institute. Data were collected through a questionnaire adapted from the standard tool of oral health questionnaire by the WHO. Results and Discussion: The result of the present study showed that 93% of the students were using toothpaste and toothbrush for cleaning teeth, but only 31% and 2% of the students were using other measures such as mouthwash and floss. Data also showed that only 44% of the students brush twice a day and only 27% visit dentist for routine checkup. Conclusion: Majority of the students were aware of the linkage between oral health and systemic health. Thus, it is essential to organize oral health education program at mass level to create awareness in public so that not only their oral health but also their general health can be improved.","PeriodicalId":56210,"journal":{"name":"Indian Journal of Dental Sciences","volume":"13 1","pages":"93 - 97"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49617820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-04-01DOI: 10.4103/IJDS.IJDS_224_20
R. Rai, S. Kaura, S. Bhardwaj, Gagandeep Satia, Namita Budhiraja
Fused supernumerary teeth are an uncommon finding. Fusion is an abnormality of tooth development. It is common in the lower anterior but rare in maxilla. Supernumerary teeth are additional teeth in normal series, occurring with a frequency of 0.3%–3.8% in population. The frequency of fusion of a permanent tooth with a supernumerary is <1% of cases and usually involves maxillary anterior teeth. Panoramic radiograph revealed a radiopaque mass in periapical region associated with maxillary third molar. The findings were suggestive of impacted supernumerary teeth. This case is an example of a rare phenomenon of fused multiple impacted supernumerary teeth in maxillary third molar area.
{"title":"Fusion of multiple impacted supernumerary teeth with maxillary third molar - A rare case report","authors":"R. Rai, S. Kaura, S. Bhardwaj, Gagandeep Satia, Namita Budhiraja","doi":"10.4103/IJDS.IJDS_224_20","DOIUrl":"https://doi.org/10.4103/IJDS.IJDS_224_20","url":null,"abstract":"Fused supernumerary teeth are an uncommon finding. Fusion is an abnormality of tooth development. It is common in the lower anterior but rare in maxilla. Supernumerary teeth are additional teeth in normal series, occurring with a frequency of 0.3%–3.8% in population. The frequency of fusion of a permanent tooth with a supernumerary is <1% of cases and usually involves maxillary anterior teeth. Panoramic radiograph revealed a radiopaque mass in periapical region associated with maxillary third molar. The findings were suggestive of impacted supernumerary teeth. This case is an example of a rare phenomenon of fused multiple impacted supernumerary teeth in maxillary third molar area.","PeriodicalId":56210,"journal":{"name":"Indian Journal of Dental Sciences","volume":"13 1","pages":"125 - 127"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44056034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-04-01DOI: 10.4103/IJDS.IJDS_203_20
Vikrant Sharma, D. Kalsi, Arushi Goyal, Swantika Chaudhry, Naveen Oberoi, P. Baweja
Low-level laser therapy (LLLT) is based on the principle of biostimulation or biomodulation effect. LLLT after gingivectomy has resulted in better wound healing because of its action on collagen synthesis, angiogenesis, and growth factor release. The authors here present a case report on the effect of LLLT, using a diode laser (InGaAsP), on wound healing and patient's response after scalpel gingivectomy.
{"title":"Effect of low-level laser therapy on wound healing after gingivectomy","authors":"Vikrant Sharma, D. Kalsi, Arushi Goyal, Swantika Chaudhry, Naveen Oberoi, P. Baweja","doi":"10.4103/IJDS.IJDS_203_20","DOIUrl":"https://doi.org/10.4103/IJDS.IJDS_203_20","url":null,"abstract":"Low-level laser therapy (LLLT) is based on the principle of biostimulation or biomodulation effect. LLLT after gingivectomy has resulted in better wound healing because of its action on collagen synthesis, angiogenesis, and growth factor release. The authors here present a case report on the effect of LLLT, using a diode laser (InGaAsP), on wound healing and patient's response after scalpel gingivectomy.","PeriodicalId":56210,"journal":{"name":"Indian Journal of Dental Sciences","volume":"13 1","pages":"128 - 133"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42219492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-04-01DOI: 10.4103/IJDS.IJDS_202_20
Nikhil Chaudhary, Manisha Gulati, Salil Pawah, Bhawana Tiwari, C. Pathak, Manish Bhutani
Context: Numerous implant techniques have been suggested in the literature to obtain an accurate master cast. One of those is to splint the impression copings; however, many controversies exist in type of splinting materials used. Aim: The aim of this study is to evaluate and compare the positional accuracy in multiple implants using different splinting materials in open-tray impression technique. Settings and Design: The study design involves an in vitro study. Materials and Methods: An acrylic resin model of a mandibular edentulous arch was used as a reference model in which four 3.75 mm × 10 mm implant analogs were placed and sequentially numbered as 1, 2, 3, and 4 from left to right. Open tray impression copings were attached to each of them and were then splinted by three different materials and divided into three Groups as Group I, Group II, and Group III splinted with pattern resin, composite resin, and titanium wire, respectively. Five implant level impressions were made from each group and poured in Type IV dental stone. The implant analogs were transferred to the casts and inter-implant distances were compared to the reference model using the Coordinate Measuring Machine. Statistical Analysis Used: One-way ANOVA test was used as a test of significance. Results: The present study revealed that all the three splinting materials can be used for the accurate reproduction of spatial relationship. There was no significant difference between the centroids of implant analogs 1 and 2, 1 and 3, 1 and 4, 2 and 3, 3 and 4, and 2 and 4 of reference model with the master models. Conclusion: Clinically acceptable accuracy in transferring the position of implants to the master cast could be obtained from all the three splinting materials used. However, splinting of impression copings with titanium wire showed greatest accuracy.
背景:文献中提出了许多种植技术来获得准确的主铸型。其中之一是用夹板固定印痕;然而，在夹板材料的种类上存在许多争议。目的:本研究的目的是评估和比较在开盘印模技术中使用不同夹板材料的多种植体的定位精度。环境和设计:研究设计包括体外研究。材料与方法:采用丙烯酸树脂制作的下颌无牙弓模型作为参考模型，放置4个3.75 mm × 10 mm的模拟种植体，从左到右依次编号为1、2、3、4。将开盘压印膜分别附着在每一组上，然后用三种不同的材料进行夹板，分为三组，分别用图案树脂、复合树脂和钛丝夹板进行I组、II组和III组。每组取5个种植体水平印模，倒入IV型牙石。将模拟种植体转移到铸造体上，并使用三坐标测量机将种植体间距离与参考模型进行比较。统计学方法:采用单因素方差分析(One-way ANOVA)进行显著性检验。结果:三种夹板材料均可用于空间关系的精确再现。参考模型种植体类似物1与2、1与3、1与4、2与3、3与4、2与4的质心与主模型无显著差异。结论:使用三种夹板材料均可获得临床可接受的植入物向主石膏转移位置的准确性。然而，用钛丝夹板固定印模涂层显示出最高的准确性。
{"title":"An in vitro study to assess the positional accuracy in multiple implants using different splinting materials in open-tray impression technique","authors":"Nikhil Chaudhary, Manisha Gulati, Salil Pawah, Bhawana Tiwari, C. Pathak, Manish Bhutani","doi":"10.4103/IJDS.IJDS_202_20","DOIUrl":"https://doi.org/10.4103/IJDS.IJDS_202_20","url":null,"abstract":"Context: Numerous implant techniques have been suggested in the literature to obtain an accurate master cast. One of those is to splint the impression copings; however, many controversies exist in type of splinting materials used. Aim: The aim of this study is to evaluate and compare the positional accuracy in multiple implants using different splinting materials in open-tray impression technique. Settings and Design: The study design involves an in vitro study. Materials and Methods: An acrylic resin model of a mandibular edentulous arch was used as a reference model in which four 3.75 mm × 10 mm implant analogs were placed and sequentially numbered as 1, 2, 3, and 4 from left to right. Open tray impression copings were attached to each of them and were then splinted by three different materials and divided into three Groups as Group I, Group II, and Group III splinted with pattern resin, composite resin, and titanium wire, respectively. Five implant level impressions were made from each group and poured in Type IV dental stone. The implant analogs were transferred to the casts and inter-implant distances were compared to the reference model using the Coordinate Measuring Machine. Statistical Analysis Used: One-way ANOVA test was used as a test of significance. Results: The present study revealed that all the three splinting materials can be used for the accurate reproduction of spatial relationship. There was no significant difference between the centroids of implant analogs 1 and 2, 1 and 3, 1 and 4, 2 and 3, 3 and 4, and 2 and 4 of reference model with the master models. Conclusion: Clinically acceptable accuracy in transferring the position of implants to the master cast could be obtained from all the three splinting materials used. However, splinting of impression copings with titanium wire showed greatest accuracy.","PeriodicalId":56210,"journal":{"name":"Indian Journal of Dental Sciences","volume":"13 1","pages":"108 - 117"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46744616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-04-01DOI: 10.4103/IJDS.IJDS_179_20
Vikrant Sharma, D. Kalsi, Arushi Goyal, Sanjana Singh, Aditya Khichy, A. Sood
Oral verrucous carcinoma (OVC) is a subtle variant of oral squamous cell carcinoma with some peculiar features. It is locally invasive growth which rarely metastasizes. Verrucous carcinoma rarely affects the tongue. Herein, we report a case of excisional biopsy of a grayish-white lesion on the left lateral surface of the tongue performed with a 940-nm diode laser, which upon histopathological examination was diagnosed as OVC.
{"title":"Excisional biopsy of verrucous carcinoma of tongue using diode laser","authors":"Vikrant Sharma, D. Kalsi, Arushi Goyal, Sanjana Singh, Aditya Khichy, A. Sood","doi":"10.4103/IJDS.IJDS_179_20","DOIUrl":"https://doi.org/10.4103/IJDS.IJDS_179_20","url":null,"abstract":"Oral verrucous carcinoma (OVC) is a subtle variant of oral squamous cell carcinoma with some peculiar features. It is locally invasive growth which rarely metastasizes. Verrucous carcinoma rarely affects the tongue. Herein, we report a case of excisional biopsy of a grayish-white lesion on the left lateral surface of the tongue performed with a 940-nm diode laser, which upon histopathological examination was diagnosed as OVC.","PeriodicalId":56210,"journal":{"name":"Indian Journal of Dental Sciences","volume":"13 1","pages":"134 - 137"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48125772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-04-01DOI: 10.4103/IJDS.IJDS_140_20
Natasha Bathla, J. Sailo, Nisha Kapoor, A. Nagpal, R. Gupta, Ayushi Singla
The fields of tissue engineering and regenerative dentistry have undergone significant advancements, yet its application to the field of implant dentistry is lacking. The advent of periodontal tissue engineering has not only revolutionized field of periodontology but also prosthodontics implant dentistry. Currently, the development of a periodontal ligament (PDL) attachment around the dental implants has now become an important new therapeutic tool to replace the lost teeth. The PDL houses various vital cells that are important in the dynamic relationship between the tooth and bone. Thus, ligaplants are now an available option to improve the biological performance and to prolong the life of the dental prosthesis. The present article reveals the clinical benefits of such new generation periodontio-integrated implants and reviews the relevant scientific proofs.
{"title":"Ligaplants, the next-generation prosthodontic implants: A comprehensive review","authors":"Natasha Bathla, J. Sailo, Nisha Kapoor, A. Nagpal, R. Gupta, Ayushi Singla","doi":"10.4103/IJDS.IJDS_140_20","DOIUrl":"https://doi.org/10.4103/IJDS.IJDS_140_20","url":null,"abstract":"The fields of tissue engineering and regenerative dentistry have undergone significant advancements, yet its application to the field of implant dentistry is lacking. The advent of periodontal tissue engineering has not only revolutionized field of periodontology but also prosthodontics implant dentistry. Currently, the development of a periodontal ligament (PDL) attachment around the dental implants has now become an important new therapeutic tool to replace the lost teeth. The PDL houses various vital cells that are important in the dynamic relationship between the tooth and bone. Thus, ligaplants are now an available option to improve the biological performance and to prolong the life of the dental prosthesis. The present article reveals the clinical benefits of such new generation periodontio-integrated implants and reviews the relevant scientific proofs.","PeriodicalId":56210,"journal":{"name":"Indian Journal of Dental Sciences","volume":"13 1","pages":"146 - 149"},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45121191","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：