Oral leukoplakia (OL) is one of the most common physiologic as well as pathologic white lesions in oral cavity. Of the many variants of OL, chronic hyperplastic candidosis, also called candidal leukoplakia (CL), is associated with Candida yeast species, which generally is an opportunistic microbe of normal oral microbiota. Many published cases and researches suggest a positive role of Candida albicans as potential culprit in malignant transformation of leukoplakia to squamous cell carcinomas at molecular level as trigger at cell signaling pathway. This article describes a case report of CL in the light of current information with clinical and histological aspect in a young patient, which was successfully treated with CO2 laser. This article also makes an attempt to provide and update the knowledge about potential malignant disorders such as leukoplakia and cofactors such as candidiasis superimposed to leukoplakia to health-care providers in order to help in early detection and treatment, thus decreasing mortality.
{"title":"Oral Candidal leukoplakia treated with CO2 laser","authors":"Reenesh Mechery, P. Arora, N. Dinakar","doi":"10.4103/jdl.jdl_5_19","DOIUrl":"https://doi.org/10.4103/jdl.jdl_5_19","url":null,"abstract":"Oral leukoplakia (OL) is one of the most common physiologic as well as pathologic white lesions in oral cavity. Of the many variants of OL, chronic hyperplastic candidosis, also called candidal leukoplakia (CL), is associated with Candida yeast species, which generally is an opportunistic microbe of normal oral microbiota. Many published cases and researches suggest a positive role of Candida albicans as potential culprit in malignant transformation of leukoplakia to squamous cell carcinomas at molecular level as trigger at cell signaling pathway. This article describes a case report of CL in the light of current information with clinical and histological aspect in a young patient, which was successfully treated with CO2 laser. This article also makes an attempt to provide and update the knowledge about potential malignant disorders such as leukoplakia and cofactors such as candidiasis superimposed to leukoplakia to health-care providers in order to help in early detection and treatment, thus decreasing mortality.","PeriodicalId":345720,"journal":{"name":"Journal of Dental Lasers","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134295530","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 : 1900-01-01DOI: 10.4103/0976-2868.118450
Yellamma K Bai, C. Pujita, V. Venu, Sandeep
Peripheral cemento-ossifying fibroma also known as peripheral ossifying fibroma (POF), peripheral cementifying fibroma, calcifying or ossifying fibroid epulis. Peripheral fibroma with calcification is a relatively common gingival growth of a reactive rather than neoplastic nature with uncertain pathogenesis and can be treated with excision under local anesthesia with Bard Parker blade, electrocautery, or Laser. Using laser in pediatric patients is been proved beneficial as laser gave us bloodless surgical site, reduced chair side time, less armamentarium and reduction or elimination of local anesthetics, suturing, postsurgical pain medication, and antibiotics due to enhanced healing. A clinical case of a 13-year-old girl child with POF with history of 45 days treated with diode laser is presented here.
{"title":"Clinical efficiency of a diode laser application as an adjunct to conventional surgical procedure: A boon to pediatric dentists","authors":"Yellamma K Bai, C. Pujita, V. Venu, Sandeep","doi":"10.4103/0976-2868.118450","DOIUrl":"https://doi.org/10.4103/0976-2868.118450","url":null,"abstract":"Peripheral cemento-ossifying fibroma also known as peripheral ossifying fibroma (POF), peripheral cementifying fibroma, calcifying or ossifying fibroid epulis. Peripheral fibroma with calcification is a relatively common gingival growth of a reactive rather than neoplastic nature with uncertain pathogenesis and can be treated with excision under local anesthesia with Bard Parker blade, electrocautery, or Laser. Using laser in pediatric patients is been proved beneficial as laser gave us bloodless surgical site, reduced chair side time, less armamentarium and reduction or elimination of local anesthetics, suturing, postsurgical pain medication, and antibiotics due to enhanced healing. A clinical case of a 13-year-old girl child with POF with history of 45 days treated with diode laser is presented here.","PeriodicalId":345720,"journal":{"name":"Journal of Dental Lasers","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127045752","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 : 1900-01-01DOI: 10.4103/0976-2868.100989
P. Musale, Abhishek Soni, Shoeb Mujawar, I. Musani
The lingual frenum has been a topic of controversy for a long time. Ankyloglossia causes problems in eating, dyspnoea, and speech disturbances. Hence, it is necessary to perform a lingual frenectomy in cases where ankyloglossia is very severe. Various methods such as surgery, diathermy, and lasers have long been used. The following case report highlights and discusses lingual frenectomy using Nd:YAG laser over other methods in children.
{"title":"Use of Nd: YAG laser in the treatment of ankyloglossia for pediatric patient","authors":"P. Musale, Abhishek Soni, Shoeb Mujawar, I. Musani","doi":"10.4103/0976-2868.100989","DOIUrl":"https://doi.org/10.4103/0976-2868.100989","url":null,"abstract":"The lingual frenum has been a topic of controversy for a long time. Ankyloglossia causes problems in eating, dyspnoea, and speech disturbances. Hence, it is necessary to perform a lingual frenectomy in cases where ankyloglossia is very severe. Various methods such as surgery, diathermy, and lasers have long been used. The following case report highlights and discusses lingual frenectomy using Nd:YAG laser over other methods in children.","PeriodicalId":345720,"journal":{"name":"Journal of Dental Lasers","volume":"215 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123255841","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 : 1900-01-01DOI: 10.4103/0976-2868.100975
Mohammed Ahmeduddin, B. Nagesh, K. Reddy, K. Raj
Aim and Objective: To evaluate the bactericidal efficacy of the Nd:YAG laser and the Diode laser at different parameters to that of calcium hydroxide, and to know the effect of increase in lasing time on degree of disinfection. Materials and Methods: Fifty human single-rooted teeth were taken and were kept in 3% NaOCl for 15 mins and access cavities were prepared, the apical third of these roots was gradually enlarged until reaching the ISO 40- K file. Later the teeth were autoclaved and mounted on 2.5 ml eppendorf tubes filled with BHI medium which was autoclaved again. The teeth were inoculated with a standard strain of Enterococcus faecalis and incubated for one week. They were randomly divided into five groups and treated as follows, G-I: - Negative control. G-II:- 980 nm diode laser irradiation for five seconds and five cycles at 2W power, 10 Hz frequency and pulsed mode. G-III:- 980 nm diode laser irradiation for 10 seconds and five cycles at 2W power, 10 Hz frequency and pulsed mode. G-IV:- Nd:YAG laser irradiation for five seconds and five cycles at 2 W power, 15 Hz frequency and pulsed mode. G-V:- Nd:YAG laser irradiation for 10 seconds and five cycles at 2 W power, 15 Hz frequency and pulsed mode. The dentin dust was collected from superficial and deep dentin of coronal and apical halves of all the samples and CFU/ ml were evaluated after three days. Results: The results were calculated and statistical analysis was done using Kruskal Wallis ANOVA test by ranks and Mann Whitney's U test. Comparisons were done between the superficial and deep dentin of different groups and between the groups. Conclusion: Under the parameters of the samples tested Nd:YAG laser provided the best results for disinfection compared to Diode laser. However, both the Nd:YAG and Diode lasers provided clinically acceptable disinfection.
{"title":"An assessment of bactericidal effect of two different types of lasers on enterococcus faecalis: An in vitro study","authors":"Mohammed Ahmeduddin, B. Nagesh, K. Reddy, K. Raj","doi":"10.4103/0976-2868.100975","DOIUrl":"https://doi.org/10.4103/0976-2868.100975","url":null,"abstract":"Aim and Objective: To evaluate the bactericidal efficacy of the Nd:YAG laser and the Diode laser at different parameters to that of calcium hydroxide, and to know the effect of increase in lasing time on degree of disinfection. Materials and Methods: Fifty human single-rooted teeth were taken and were kept in 3% NaOCl for 15 mins and access cavities were prepared, the apical third of these roots was gradually enlarged until reaching the ISO 40- K file. Later the teeth were autoclaved and mounted on 2.5 ml eppendorf tubes filled with BHI medium which was autoclaved again. The teeth were inoculated with a standard strain of Enterococcus faecalis and incubated for one week. They were randomly divided into five groups and treated as follows, G-I: - Negative control. G-II:- 980 nm diode laser irradiation for five seconds and five cycles at 2W power, 10 Hz frequency and pulsed mode. G-III:- 980 nm diode laser irradiation for 10 seconds and five cycles at 2W power, 10 Hz frequency and pulsed mode. G-IV:- Nd:YAG laser irradiation for five seconds and five cycles at 2 W power, 15 Hz frequency and pulsed mode. G-V:- Nd:YAG laser irradiation for 10 seconds and five cycles at 2 W power, 15 Hz frequency and pulsed mode. The dentin dust was collected from superficial and deep dentin of coronal and apical halves of all the samples and CFU/ ml were evaluated after three days. Results: The results were calculated and statistical analysis was done using Kruskal Wallis ANOVA test by ranks and Mann Whitney's U test. Comparisons were done between the superficial and deep dentin of different groups and between the groups. Conclusion: Under the parameters of the samples tested Nd:YAG laser provided the best results for disinfection compared to Diode laser. However, both the Nd:YAG and Diode lasers provided clinically acceptable disinfection.","PeriodicalId":345720,"journal":{"name":"Journal of Dental Lasers","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126239506","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}
Context: Diode laser has been used as adjunct to scaling and root planing in the treatment of periodontitis. However, inadvertent effect of diode laser on root surface needs more evaluation. Aims: The aim of this study was to evaluate and compare the structural and compositional changes in extracted human permanent teeth following scaling, root planing, and diode laser (980 nm) application in noncontact mode. Settings and Design: This was an in vitro environmental scanning electron microscope (ESEM) study. Materials and Methods: Thirty single rooted periodontally involved teeth indicated for extraction were selected and divided into two groups. In Group 1, 15 teeth were treated with scaling and root planing followed by diode laser application in noncontact mode (2 W, 30 s) and in Group 2, 15 teeth were treated with scaling and root planing alone. An ESEM was used to examine the cemental surface. Compositional changes were assessed using EDAX software. Statistical Analysis Used: The statistical comparison of compositional changes and root surface alterations in two groups was carried out using independent sample t-test and Chi-square test, respectively. P < 0.05 was considered as statistically significant. Results: About 53.3% of teeth in Group 1 showed mild surface changes (Score 4) as compared to only 13.3% of teeth in Group 2. The results were statistically significant ( P - 0.001). This study also reveals a significant amount of compositional changes in Group 1 as compared with Group 2. Mass % of carbon and oxygen is significantly increased in Group 1 as compared with Group 2. Conclusions: In this study, mild root surface alterations were seen in the form of cracks and charring after diode laser application in noncontact mode.
{"title":"Effect of diode laser on periodontally involved root surfaces: An in vitro environmental scanning electron microscope study","authors":"Lohar Nilam Baburao, Byakod Girish Neelkanth, HegdeRashmi Vivek, Muglikar Sangeeta Dilip","doi":"10.4103/0976-2868.134108","DOIUrl":"https://doi.org/10.4103/0976-2868.134108","url":null,"abstract":"Context: Diode laser has been used as adjunct to scaling and root planing in the treatment of periodontitis. However, inadvertent effect of diode laser on root surface needs more evaluation. Aims: The aim of this study was to evaluate and compare the structural and compositional changes in extracted human permanent teeth following scaling, root planing, and diode laser (980 nm) application in noncontact mode. Settings and Design: This was an in vitro environmental scanning electron microscope (ESEM) study. Materials and Methods: Thirty single rooted periodontally involved teeth indicated for extraction were selected and divided into two groups. In Group 1, 15 teeth were treated with scaling and root planing followed by diode laser application in noncontact mode (2 W, 30 s) and in Group 2, 15 teeth were treated with scaling and root planing alone. An ESEM was used to examine the cemental surface. Compositional changes were assessed using EDAX software. Statistical Analysis Used: The statistical comparison of compositional changes and root surface alterations in two groups was carried out using independent sample t-test and Chi-square test, respectively. P < 0.05 was considered as statistically significant. Results: About 53.3% of teeth in Group 1 showed mild surface changes (Score 4) as compared to only 13.3% of teeth in Group 2. The results were statistically significant ( P - 0.001). This study also reveals a significant amount of compositional changes in Group 1 as compared with Group 2. Mass % of carbon and oxygen is significantly increased in Group 1 as compared with Group 2. Conclusions: In this study, mild root surface alterations were seen in the form of cracks and charring after diode laser application in noncontact mode.","PeriodicalId":345720,"journal":{"name":"Journal of Dental Lasers","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115263259","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}
I. Arslan, O. Baygin, Gulcin Bayram, R. Akyol, T. Tuzuner
Context: Cavity disinfection is recommended with the routine caries removal methods in order to eliminate the microorganisms and to reduce potential secondary caries. Aims: The aims of this study were to evaluate the antibacterial effects of Corsodyl; Cervitec; Cervitec Plus; Fluor Protector agents and FotoSan; diode laser; and erbium, chromium: yttrium, scandium, gallium, garnet (Er, Cr:YSGG) laser systems on Streptococcus mutans and Lactobacillus acidophilus as well as their effects on the microtensile bond strength. Materials and Methods: A cavity tooth model test was used to determine antibacterial activity after which the effects of the same agents and systems on the microtensile bond strength were evaluated. Eight cylindrical cavities were prepared on the dentin surface of 24 bovine incisors, and 12 of them were left in contact with S. mutans; others were left in contact with L. acidophilus. Test agents and systems were applied, and standardized amounts of dentin chips were obtained from the cavity walls. The number of bacteria recovered was counted. The effect of tested agents and systems on bond strength was evaluated with microtensile bond strength test. Statistical Analysis Used: Statistical analysis was carried out using the Kruskal–Wallis and Mann–Whitney U tests for the cavity tooth model test, and one-way ANOVA and Tukey test for microtensile bond strength test. Results: Test results showed that all of the disinfection methods demonstrated significant antibacterial activity on both S. mutans and L. acidophilus (P < 0.01). The agents used in this study significantly reduced the microtensile bond strength (P < 0.05) whereas the Er, Cr:YSGG laser significantly increased the bond strength (P < 0.01). Conclusions: Er, Cr:YSGG laser can be recommended for cavity disinfection due to its superior antibacterial activity and increased bond strength.
{"title":"Effects of various agents and laser systems on antibacterial activity and microtensile bond strength when used for cavity disinfection","authors":"I. Arslan, O. Baygin, Gulcin Bayram, R. Akyol, T. Tuzuner","doi":"10.4103/jdl.jdl_16_18","DOIUrl":"https://doi.org/10.4103/jdl.jdl_16_18","url":null,"abstract":"Context: Cavity disinfection is recommended with the routine caries removal methods in order to eliminate the microorganisms and to reduce potential secondary caries. Aims: The aims of this study were to evaluate the antibacterial effects of Corsodyl; Cervitec; Cervitec Plus; Fluor Protector agents and FotoSan; diode laser; and erbium, chromium: yttrium, scandium, gallium, garnet (Er, Cr:YSGG) laser systems on Streptococcus mutans and Lactobacillus acidophilus as well as their effects on the microtensile bond strength. Materials and Methods: A cavity tooth model test was used to determine antibacterial activity after which the effects of the same agents and systems on the microtensile bond strength were evaluated. Eight cylindrical cavities were prepared on the dentin surface of 24 bovine incisors, and 12 of them were left in contact with S. mutans; others were left in contact with L. acidophilus. Test agents and systems were applied, and standardized amounts of dentin chips were obtained from the cavity walls. The number of bacteria recovered was counted. The effect of tested agents and systems on bond strength was evaluated with microtensile bond strength test. Statistical Analysis Used: Statistical analysis was carried out using the Kruskal–Wallis and Mann–Whitney U tests for the cavity tooth model test, and one-way ANOVA and Tukey test for microtensile bond strength test. Results: Test results showed that all of the disinfection methods demonstrated significant antibacterial activity on both S. mutans and L. acidophilus (P < 0.01). The agents used in this study significantly reduced the microtensile bond strength (P < 0.05) whereas the Er, Cr:YSGG laser significantly increased the bond strength (P < 0.01). Conclusions: Er, Cr:YSGG laser can be recommended for cavity disinfection due to its superior antibacterial activity and increased bond strength.","PeriodicalId":345720,"journal":{"name":"Journal of Dental Lasers","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133185964","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 : 1900-01-01DOI: 10.4103/0976-2868.100979
N. Deenadayalan, C. Kumaravel, A. Narayanan
Trigeminal neuralgia is an extremely painful and difficult condition to treat. Adding LASER is an edge cutting techonology which might help stop drugs and thereby the adverse effects. To describe the experience of using LASER in a patient with trigeminal neuralgia For NEUTECTOMY. A 47-year-old man presented with constant, severe pain in the right side of his face over the nasolabial groove for more than 11 months. The pain had been progressively worse and was usually precipitated by brushing his teeth, shaving, washing his face, eating, and talking. The patient's neurologist treated him with 150 mg/d of carbamazepine; when the pain improved, the dosage was reduced. However, the pain worsened in two months and he was prescribed 1500 mg of oxcarbazepine three times daily. It did not relieve the pain, which had become constant with the severity higher than 10 on a scale of 1-10. The patient was treated with LASER. Relief of neuralgia. The patient's pain level during the 1st day of treatment dropped from 10/10 to 0. On his 2nd visit. The patient continued to improve and could eat and speak without pain. This case report describes a patient who responded well by the use of LASER.
{"title":"Trigeminal neuralgia surgical treatment using LASER","authors":"N. Deenadayalan, C. Kumaravel, A. Narayanan","doi":"10.4103/0976-2868.100979","DOIUrl":"https://doi.org/10.4103/0976-2868.100979","url":null,"abstract":"Trigeminal neuralgia is an extremely painful and difficult condition to treat. Adding LASER is an edge cutting techonology which might help stop drugs and thereby the adverse effects. To describe the experience of using LASER in a patient with trigeminal neuralgia For NEUTECTOMY. A 47-year-old man presented with constant, severe pain in the right side of his face over the nasolabial groove for more than 11 months. The pain had been progressively worse and was usually precipitated by brushing his teeth, shaving, washing his face, eating, and talking. The patient's neurologist treated him with 150 mg/d of carbamazepine; when the pain improved, the dosage was reduced. However, the pain worsened in two months and he was prescribed 1500 mg of oxcarbazepine three times daily. It did not relieve the pain, which had become constant with the severity higher than 10 on a scale of 1-10. The patient was treated with LASER. Relief of neuralgia. The patient's pain level during the 1st day of treatment dropped from 10/10 to 0. On his 2nd visit. The patient continued to improve and could eat and speak without pain. This case report describes a patient who responded well by the use of LASER.","PeriodicalId":345720,"journal":{"name":"Journal of Dental Lasers","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128505415","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 : 1900-01-01DOI: 10.4103/0976-2868.118444
Vighnesh Dixit, M. Dixit, V. Hegde, S. Sathe, S. Jadhav
Context: Use of lasers in painless contemporary restorative dentistry. Aims: To assess the extent of painless perception using lasers for tooth preparation based on visual analogue scale (VAS). To compare conventional and laser tooth preparation using VAS scale. Settings and Design: Adult patients reporting to the Department of Conservative Dentistry were selected. Fotona fidelis make for ER:YAG laser was used at preset laser settings for enamel and dentin removal with combination of air-water spray. Materials and Methods: Standardized class I tooth preparation for composite restorations were selected for individuals requiring treatment for teeth with similar enamel/dentinal configuration, that is, contralateral in the same individual. Carbide burs-SS White #245 were used for all preparations. Identical tooth preparations were carried out by the same operator for both the teeth using conventional high speed on one side and ER:YAG laser at noncontact mode on the other side. Fotona fidelis make was used at preset laser settings for enamel and dentin removal with combination of air-water spray. The patient was required to provide score according to the VAS scale. Statistical Analysis Used: Kruskal-Wallis test. Results: The median of pain while preparing tooth by conventional method is the highest in patient (8) and the smallest in ER:YAG laser (1). The P value is very small (less than the common alpha-level of 0.05), the test is significant. Thus, it is concluded that the method of tooth preparation does affect the pain perception. Conclusions: The statistical analysis of these findings comprehensively prove that laser tooth preparation is much more painless, hence comfortable for the patient, only the economics prove to be a deterrent in its widespread usage.
背景:激光在无痛当代牙科修复中的应用。目的:以视觉模拟评分法(VAS)评价激光预备牙的无痛感知程度。采用VAS评分法比较常规与激光预备牙的差异。环境和设计:选择向保守牙科部门报告的成年患者。在预先设定的激光设置下，使用YAG激光结合空气-水喷雾进行牙本质和牙釉质的去除。材料和方法:对于需要治疗具有相似牙釉质/牙本质结构的牙齿的个体，即同一个体的对侧，选择用于复合修复的标准化I类牙齿准备。所有制备均采用硬质合金毛刺- ss White #245。由同一操作员对两颗牙齿进行相同的牙齿制备，一侧使用常规高速，另一侧使用ER:YAG非接触模式激光。在预先设定的激光环境下，使用Fotona fidelis make结合空气-水喷雾去除牙釉质和牙本质。患者需根据VAS量表进行评分。采用Kruskal-Wallis检验。结果:常规方法预备牙时疼痛中位数最高(8例)，ER:YAG激光预备牙时疼痛中位数最小(1例)，P值非常小(小于常见α水平0.05)，检验具有显著性。由此可见，预备牙的方法确实会影响患者的痛觉。结论:对这些结果进行统计分析，全面证明了激光预备牙的无痛性更强，对患者更舒适，只是经济方面的原因阻碍了其广泛应用。
{"title":"Clinical evaluation of conventional and laser tooth preparation using visual analogue scale","authors":"Vighnesh Dixit, M. Dixit, V. Hegde, S. Sathe, S. Jadhav","doi":"10.4103/0976-2868.118444","DOIUrl":"https://doi.org/10.4103/0976-2868.118444","url":null,"abstract":"Context: Use of lasers in painless contemporary restorative dentistry. Aims: To assess the extent of painless perception using lasers for tooth preparation based on visual analogue scale (VAS). To compare conventional and laser tooth preparation using VAS scale. Settings and Design: Adult patients reporting to the Department of Conservative Dentistry were selected. Fotona fidelis make for ER:YAG laser was used at preset laser settings for enamel and dentin removal with combination of air-water spray. Materials and Methods: Standardized class I tooth preparation for composite restorations were selected for individuals requiring treatment for teeth with similar enamel/dentinal configuration, that is, contralateral in the same individual. Carbide burs-SS White #245 were used for all preparations. Identical tooth preparations were carried out by the same operator for both the teeth using conventional high speed on one side and ER:YAG laser at noncontact mode on the other side. Fotona fidelis make was used at preset laser settings for enamel and dentin removal with combination of air-water spray. The patient was required to provide score according to the VAS scale. Statistical Analysis Used: Kruskal-Wallis test. Results: The median of pain while preparing tooth by conventional method is the highest in patient (8) and the smallest in ER:YAG laser (1). The P value is very small (less than the common alpha-level of 0.05), the test is significant. Thus, it is concluded that the method of tooth preparation does affect the pain perception. Conclusions: The statistical analysis of these findings comprehensively prove that laser tooth preparation is much more painless, hence comfortable for the patient, only the economics prove to be a deterrent in its widespread usage.","PeriodicalId":345720,"journal":{"name":"Journal of Dental Lasers","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116000865","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 : 1900-01-01DOI: 10.4103/0976-2868.118453
D. Rathod, Sanjyot A Mulay
Melanin, carotene, and hemoglobin are the most common natural pigments contributing to the natural color of the gums. Although physiologic and ethnic melanin pigmentation is not a medical problem, complaints about black gums are common. Gingival depigmentation has been carried out using surgical, chemical, electrosurgical and cryosurgical procedures. Recently, laser ablation has been recognized as one of the most effective, pleasant and reliable techniques. Effective depigmentation of the gingiva requires removal of all or most of the melanocytes from the basal layer of gingival epithelium. In present case report the efficacy of gingival depigmentation using neodymium:yttrium-aluminium-garnet (Nd:YAG) and erbium:YAG (Er:YAG) lasers in same patient was evaluated.
{"title":"Comparative evaluation of ER:YAG and Nd:YAG Laser for gingival depigmentation","authors":"D. Rathod, Sanjyot A Mulay","doi":"10.4103/0976-2868.118453","DOIUrl":"https://doi.org/10.4103/0976-2868.118453","url":null,"abstract":"Melanin, carotene, and hemoglobin are the most common natural pigments contributing to the natural color of the gums. Although physiologic and ethnic melanin pigmentation is not a medical problem, complaints about black gums are common. Gingival depigmentation has been carried out using surgical, chemical, electrosurgical and cryosurgical procedures. Recently, laser ablation has been recognized as one of the most effective, pleasant and reliable techniques. Effective depigmentation of the gingiva requires removal of all or most of the melanocytes from the basal layer of gingival epithelium. In present case report the efficacy of gingival depigmentation using neodymium:yttrium-aluminium-garnet (Nd:YAG) and erbium:YAG (Er:YAG) lasers in same patient was evaluated.","PeriodicalId":345720,"journal":{"name":"Journal of Dental Lasers","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134364241","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 : 1900-01-01DOI: 10.4103/0976-2868.118414
Duygu Kürklü, N. Yanıkoğlu
Objective: The aim of this study is to analyze the effect of laser treatment on surface morphology of restorative materials. Materials and Methods: The samples included 19 porcelain ceramics (Group P), 10 half yttrium stabilized zirconia (Y-TZP) and half porcelain (Group ZP), and 13 Y-TZP ceramic (Group Z). Pilot study was applied on the prepared samples to determine the effectiveness of hydroxyapatite or graphite powder before surface treatment. Following the pilot study, three laser systems were treated over all ceramic surfaces and scanning electron microscope (SEM) images were taken to do topographic analysis of the samples. Results: According to the results of pilot study; surfaces of zirconia, porcelain, and zirconia-porcelain samples were covered with graphite powder and then treated by CO 2 laser, erbium:Yttrium-aluminum-garnet (Er:YAG) and neodymium:YAG (Nd:YAG) laser. SEM observations were reported for all laser types and all laser parameters that were chosen. Conclusion: The three types of laser products; CO 2 , Er:YAG, and Nd:YAG are also effective on different output powers on different types of restorative materials.
{"title":"SEM evaluation of surface morphologic analysis of restorative materials with three laser treatment","authors":"Duygu Kürklü, N. Yanıkoğlu","doi":"10.4103/0976-2868.118414","DOIUrl":"https://doi.org/10.4103/0976-2868.118414","url":null,"abstract":"Objective: The aim of this study is to analyze the effect of laser treatment on surface morphology of restorative materials. Materials and Methods: The samples included 19 porcelain ceramics (Group P), 10 half yttrium stabilized zirconia (Y-TZP) and half porcelain (Group ZP), and 13 Y-TZP ceramic (Group Z). Pilot study was applied on the prepared samples to determine the effectiveness of hydroxyapatite or graphite powder before surface treatment. Following the pilot study, three laser systems were treated over all ceramic surfaces and scanning electron microscope (SEM) images were taken to do topographic analysis of the samples. Results: According to the results of pilot study; surfaces of zirconia, porcelain, and zirconia-porcelain samples were covered with graphite powder and then treated by CO 2 laser, erbium:Yttrium-aluminum-garnet (Er:YAG) and neodymium:YAG (Nd:YAG) laser. SEM observations were reported for all laser types and all laser parameters that were chosen. Conclusion: The three types of laser products; CO 2 , Er:YAG, and Nd:YAG are also effective on different output powers on different types of restorative materials.","PeriodicalId":345720,"journal":{"name":"Journal of Dental Lasers","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125475647","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}
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