Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 19 de 19
Filtrar
Más filtros

Banco de datos
Tipo del documento
Asunto de la revista
Intervalo de año de publicación
1.
J Contemp Dent Pract ; 22(7): 829-832, 2021 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-34615790

RESUMEN

AIM: The aim of the present study was to compare the capacity of three dissimilar commercially accessible desensitizing products for the occlusion of dentinal tubules using a scanning electron microscope (SEM). MATERIALS AND METHODS: The nondiseased human mandibular premolar teeth, ninety in number, were amassed for this study. The blocks subsequently made were subjected to polishing using abrasive paper to facilitate dentinal surface exposure. The samples were randomly allocated to one of the following three groups: Group I, samples to be treated with Admira Protect; Group II, samples to be treated with MI paste, Group III, samples to be treated with Remin Pro. Photomicrograph of every sample was taken to evaluate the occlusion of the dentin tubule under 2000× magnification of the SEM. RESULTS: MI paste exhibited the greatest dentin tubular occlusion with a value of 2.746 ± 0.530 followed by Admira Protect (3.498 ± 0.202) and Remin Pro (4.594 ± 0.364) in that order. Amid the various desensitizing materials used, statistically significant differences (p <0.001) were noted. CONCLUSION: Within the confines of the limitations of the present research, following a comparative assessment of the three desensitizing materials used, it can be concluded that all of them were efficient in sealing off the dentin tubules in spite of differing chemical constitutions and techniques of application. When compared with the agents, Admira Protect and Remin Pro, MI paste exhibited the maximum occluding capacity of the dentinal tubules. CLINICAL SIGNIFICANCE: A short, sharp shooting pain characterizes the frequent problem of dentin hypersensitivity (DH). Sealing off the open dentin tubules, thereby reducing dentinal permeability, is a known method in the treatment of DH. As several agents exist to reduce DH, the best commercially marketed product for decreasing this condition by occluding the tubules should be identified by the clinicians.


Asunto(s)
Electrones , Humanos , Microscopía Electrónica de Rastreo
2.
J Contemp Dent Pract ; 22(9): 1003-1007, 2021 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-35000943

RESUMEN

AIM: The aim of this research was to assess the effectiveness of three different irrigation systems in elimination of calcium hydroxide [Ca(OH)2]from root canals. MATERIALS AND METHODS: This in vitro research included ninety recently extracted mandibular premolar teeth with a solitary root. The sample teeth were subjected to disinfection employing sodium hypochlorite at 5.25%. The root canal preparation was performed followed by placement of premixed Ca(OH)2 within every canal. The sample teeth were then randomly allocated into one of the three experimental groups (each comprising 30 samples) as follows: Group 1, NaviTip FX irrigation system; group 2, Vibringe sonic irrigation system; and group 3, EndoVac apical negative pressure irrigation system. Following the preparation, each of the sample teeth was examined beneath a scanning electron microscope (SEM) at a magnification of 1000×. RESULTS: An intragroup comparative analysis revealed that the highest Ca(OH)2 elimination was seen at middle third (0.82 ± 0.09, 0.30 ± 0.11) in NaviTip FX irrigation system and Vibringe sonic irrigation system, respectively. Higher Ca(OH)2 was eliminated at the apical third (0.26 ± 0.02) by the EndoVac irrigation system. At coronal third, maximum Ca(OH)2 removal was seen in EndoVac irrigation system (0.49 ± 0.03). A statistically significant difference was noted amid Vibringe sonic irrigation and EndoVac irrigation systems. The intergroup evaluation of Ca(OH)2 elimination at coronal, middle, and apical third showed a statistically significant difference between NaviTip FX irrigation and Vibringe sonic irrigation as well as between NaviTip FX irrigation and EndoVac irrigation at a p value of 0.001. The difference between EndoVac irrigation and Vibringe sonic irrigation was not statistically significant. CONCLUSION: Amid the limitations of this research, this research concludes that none among the irrigation methods employed could totally eliminate the Ca(OH)2 off the root canals. Nevertheless, EndoVac apical negative pressure irrigation has slightly superior potential in eliminating Ca(OH)2 from the root canals in comparison with Vibringe sonic irrigation as well as the NaviTip FX irrigation system. CLINICAL SIGNIFICANCE: Even though the Ca(OH)2 is largely suggested as medicament, its elimination at the point of canal obturation is likewise significant and complex as any remaining portion may avoid sealer diffusion inside the dentinal tubules, consequently substantially escalating the apical leakage of endodontically treated teeth.


Asunto(s)
Hidróxido de Calcio , Irrigantes del Conducto Radicular , Cavidad Pulpar , Microscopía Electrónica de Rastreo , Preparación del Conducto Radicular , Hipoclorito de Sodio , Irrigación Terapéutica
3.
J Contemp Dent Pract ; 22(8): 890-893, 2021 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-34753840

RESUMEN

AIM AND OBJECTIVE: The aim of this study was to evaluate the depth of penetration as well as the microleakage of three different pit and fissure sealant materials employing the dye penetration method. MATERIALS AND METHODS: Sixty healthy human mandibular premolar teeth without dental caries that were extracted for orthodontic treatment constituted the study samples. These 60 premolar samples were subjected to an equal division (20 in every group) into three groups. Group I: self-adhering flowable composite, group II: flowable nanocomposites, group III: classical pit and fissure sealants. Every sample tooth underwent thermocycling amid 4°C ± 2°C and 60°C ± 2°C for 1,000 cycles. The samples were placed in 1% methylene blue solution for 24 hours to permit diffusion of the dye into probable gaps in between the restoration and the tooth. The teeth were sectioned and evaluated below a stereomicroscope at 10× magnification with image analysis software. RESULTS: Flowable nanocomposites (3.69 ± 0.10) exhibited a slightly greater mean depth of penetration as compared to classical pit and fissure sealants (3.58 ± 0.16) and self-adhering flowable composites (3.51 ± 0.13) in that order. This difference between the three sealants was not significant statistical. Amid the three sealant study groups, the lowest mean marginal microleakage was exhibited by the flowable nanocomposites (1.06 ± 0.03), followed by self-adhering flowable composites (1.98 ± 0.06), and classical pit and fissure sealants (2.74 ± 0.11). Analysis of variance revealed statistically significant differences among the three sealants that were studied. CONCLUSION: This study concludes that flowable nanocomposites depicted enhanced penetration and reduced marginal leakage as compared to the self-adhering flowable composites and classical pit and fissure sealants. CLINICAL SIGNIFICANCE: An efficient approach to preventing dental caries on the occlusal surfaces of teeth is the use of pit and fissure sealants. The efficiency of sealants chiefly depends on the morphological characteristics of the fissures and properties of dental materials used.


Asunto(s)
Caries Dental , Filtración Dental , Diente Premolar , Filtración Dental/prevención & control , Humanos , Azul de Metileno , Selladores de Fosas y Fisuras
4.
J Contemp Dent Pract ; 22(8): 939-942, 2021 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-34753848

RESUMEN

AIM: Aim of this research was to evaluate the remineralizing potential of three different remineralizing pastes on enamel that has been demineralized. MATERIALS AND METHODS: Sixty healthy mandibular single-rooted human premolars extracted for orthodontic reasons from subjects between 18 and 25 years of age were included in this research. An area of 4 mm × 4 mm (window) was marked on the buccal surfaces of teeth samples, coated with nail varnish except for the window, which was scrutinized for changes in the values subsequent to demineralization as well as remineralization. Samples were kept in demineralizing solution for 96 hours to produce the artificial lesion in the enamel. Consequent to this process of demineralization, the 60 premolar teeth were randomly allocated to the following three groups (20 in each group) depending on the remineralizing paste used for application as group I: bioactive glass constituting remineralizing paste; group II: tricalcium phosphate (TCP) comprising remineralizing paste; and group III: calcium sucrose phosphate (CaSP) remineralizing paste. Following the pH-cycling process, the confocal laser scanning microscope was used to assess the area of demineralization and remineralization. RESULTS: The mean areas of demineralization were slightly more (133.24 ± 0.09) in the remineralization paste comprising bioactive glass seconded by the remineralization paste having CaSP (131.39 ± 0.18), and lastly the remineralizing paste constituting TCP (129.59 ± 0.14). Maximum areas of remineralization were found in the pastes that had CaSP group (96.14 ± 0.04), next by the paste having bioactive glass group (102.18 ± 0.17), and then the remineralization paste constituting TCP (118.37 ± 0.21). The difference was statistically significant among the three remineralization pastes used. CONCLUSION: Amid the confines of this in vitro research, a conclusion that the remineralization pastes comprising CaSP exhibited enhanced remineralization capacity in comparison to the group having bioactive glass and TCP was established. CLINICAL SIGNIFICANCE: Caries is a highly prevalent multifactorial disease, but its progression can be prevented in the initial stage of demineralization through remineralization. Significantly increasing attention to the treatment of carious lesions that are not cavitated by employing noninvasive remineralization methods to achieve restoration of enamel has been rendered in the field of research.


Asunto(s)
Caries Dental , Remineralización Dental , Diente Premolar , Atención Odontológica , Esmalte Dental , Humanos
5.
Cureus ; 16(2): e54624, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38529462

RESUMEN

BACKGROUND: Implant-supported restorations have gained popularity in modern dentistry, and the choice of abutment material is crucial for their long-term success. This in vitro study aimed to evaluate the fracture resistance and failure mode of implant-supported restorations using different abutment materials. METHODS: Ninety standardized implant-supported restorations were included in the study. Abutments made of titanium, zirconia, and a hybrid material (titanium base with a zirconia veneer) were evaluated. Standardized abutments were fabricated, and screw-retained restorations were fabricated using a resin-based composite material. Cyclic loading was applied using a universal testing machine to simulate masticatory forces. Fracture resistance was measured in terms of the number of cycles to failure (NCF), and failure modes were analyzed. RESULTS: The findings indicate that zirconia abutments exhibited higher fracture resistance compared to titanium and hybrid abutments. Longer implants demonstrated higher fracture resistance, suggesting improved stability and resistance to mechanical forces. Increased loading angles resulted in decreased fracture resistance of implant-supported restorations, emphasizing the need for proper occlusal adjustment. Central loading showed higher fracture resistance than lateral and posterior loading locations. The distribution of failure modes varied among the abutment materials, with bulk prosthesis fracture being the most common in the titanium group, while abutment fracture was predominant in the zirconia and hybrid groups. CONCLUSION: This in vitro study demonstrated that the choice of abutment material significantly influenced the fracture resistance and failure mode of implant-supported restorations. Zirconia abutments exhibited the highest fracture resistance, followed by hybrid and titanium abutments. The failure mode analysis revealed different patterns of failure for each abutment material.

6.
J Pharm Bioallied Sci ; 16(Suppl 1): S786-S788, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38595407

RESUMEN

Background: Oral cancer is a significant global health issue, with prevention and early detection being pivotal for improved outcomes. This study investigates the impact of cultural and socioeconomic factors on oral cancer prevention behaviors, screening participation, and treatment outcomes. Materials and Methods: A cross-sectional study design was employed, involving a sample size of 1,000 participants. Participants were recruited through stratified sampling to ensure cultural and socioeconomic diversity. Statistical analyses, including logistic regression, were used to explore associations between factors and outcomes. Results: The study revealed multifaceted influences of cultural and socioeconomic factors on oral cancer-related aspects. Cultural factors significantly influenced prevention behaviors, with participants from certain cultural backgrounds exhibiting higher rates of tobacco use and lower rates of dietary adherence). Socioeconomic status played a role in screening uptake, with individuals from lower income brackets less likely to undergo regular screenings. Conclusion: Cultural and socioeconomic factors have a substantial influence on oral cancer prevention behaviors, screening participation, and treatment outcomes.

7.
J Pharm Bioallied Sci ; 16(Suppl 1): S72-S74, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38595561

RESUMEN

Biophotonics, an interdisciplinary field merging biology with photonics, has transformed dentistry by offering innovative techniques and tools for diagnosis, treatment, and research. This overview explores the applications and benefits of biophotonics in dentistry, including early disease detection, precision in procedures, restorative dentistry assessment, real-time monitoring, and teeth whitening. We discuss how biophotonics improves patient care and the potential for future developments in personalized treatment, targeted therapy, enhanced imaging, and pain management. Biophotonics promises to continue revolutionizing oral healthcare, leading to better patient outcomes worldwide.

8.
J Pharm Bioallied Sci ; 16(Suppl 1): S771-S773, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38595512

RESUMEN

Background: In this research study, we delve into the effects of smoking cessation programs on the progression of periodontal disease, particularly focusing on the potential benefits experienced by individuals who successfully quit smoking. Materials And Methods: The research involved the participation of 200 individuals, all of whom were active smokers and exhibited varying degrees of periodontal disease. These participants enrolled in a comprehensive smoking cessation program that included regular counseling sessions and, when necessary, the provision of nicotine replacement therapy to facilitate smoking cessation. Over a 12-month period, the progression of their periodontal disease was systematically monitored through a series of dental check-ups and measurements of critical clinical parameters. These parameters included probing depth (PD), which assesses the spaces between teeth and gums, and clinical attachment level (CAL), which evaluates the attachment of gum tissue to tooth surfaces. Results: After 12 months of active participation in the smoking cessation program, several noteworthy results were observed among the participants. On average, participants experienced a reduction in PD by approximately 1.5 mm, indicating a shallower space between the teeth and gums and, thus, healthier periodontal tissues. In addition, the CAL improved by an average of 1.2 mm, signifying enhanced attachment of gum tissue to the tooth surface, which is essential for dental stability. Participants also exhibited a significant reduction in plaque accumulation on tooth surfaces, indicative of improved oral hygiene practices. Furthermore, gingival inflammation, a common symptom of periodontal disease, notably decreased among participants, suggesting an overall improvement in gum health. Conclusion: In conclusion, this study provides compelling evidence supporting the positive impact of smoking cessation programs on the progression of periodontal disease.

9.
J Pharm Bioallied Sci ; 16(Suppl 1): S774-S776, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38595577

RESUMEN

Background: Community water fluoridation is a well-recognized public health initiative known for its efficacy in preventing dental cavities. The positive effects of fluoride on tooth enamel have led to widespread implementation of water fluoridation programs. Materials and Methods: This cross-sectional study involved 1,000 participants from diverse age groups, spanning children, adolescents, adults, and older adults, residing in both fluoridated and non-fluoridated communities. Comprehensive periodontal assessments included measurements of probing depth (PD), clinical attachment level (CAL), and the presence of gingival inflammation. Participants were categorized into "fluoridated" or "non-fluoridated" groups based on their residential history. Results: Fluoridated communities consistently displayed lower mean PDs, CALs, and rates of gingival inflammation across all age groups. Notably, the reduction in PD and CAL reached approximately 0.5 millimeters and 0.3 millimeters, respectively, while the decrease in gingival inflammation ranged from 3% to 5. Conclusion: This study suggests a potential link between community water fluoridation and enhanced periodontal health, as evidenced by improved PDs, CALs, and reduced gingival inflammation.

10.
J Pharm Bioallied Sci ; 16(Suppl 1): S777-S779, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38595570

RESUMEN

Background: Periodontal health is a critical aspect of overall oral health, yet public awareness and education on this topic remain limited. With the increasing prevalence of online health education platforms, it is essential to evaluate the effectiveness of online periodontal health workshops compared with traditional in-person workshops on improving public awareness. Materials and Methods: Study Design: This randomized controlled trial (RCT) aimed to assess the impact of online and in-person periodontal health workshops on public awareness. Participants (N = 500) were randomly assigned to one of two groups: the online workshop group or the in-person workshop group. Online Workshop: Participants in this group accessed an interactive online periodontal health workshop, consisting of video presentations, animations, and quizzes. The workshop covered topics, such as gum disease prevention, oral hygiene, and the importance of regular dental checkups. In-Person Workshop: Participants in this group attended a traditional in-person periodontal health workshop conducted by dental professionals. The content and duration of this workshop mirrored the online version. Pre- and Postworkshop Assessments: Both groups completed pre-workshop and postworkshop assessments, including a knowledge questionnaire and a self-assessment of oral health habits. Arbitrary scores were assigned to quantify knowledge gain (0-100%). Results: Participants in the online workshop group showed a mean knowledge gain of 30% (standard deviation (SD) = 5.2), while those in the in-person workshop group exhibited a mean knowledge gain of 35% (SD = 4.7). The self-assessment of oral health habits indicated an improvement in both groups, with 60% of participants reporting better oral hygiene practices. Conclusion: Both online and in-person periodontal health workshops demonstrated effectiveness in improving public awareness and promoting better oral health habits. Combining both modalities could be an effective strategy for comprehensive public education on periodontal health.

11.
J Pharm Bioallied Sci ; 15(Suppl 2): S987-S989, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37693956

RESUMEN

Objective: The purpose of this research was to examine patients' periodontal health before, during, and after treatment using a fixed orthodontic device. Methods: Forty normal teenagers with full sets of permanent teeth and a clinical need for fixed orthodontics participated. Individuals were chosen from the Class I population who would benefit from utilizing traditional orthodontic braces and techniques that did not need extractions. Respondents were sent to the periodontist for required checkups after the placement of a fixed orthodontic device at 3-, 6-, 12-, and 24-month intervals, respectively, till the conclusion of orthodontic treatment. Results: After having a fixed orthodontic device put in place, patients had a rise in the average values of the Plaque Index and Sulcus Bleeding Index at each checkup. Keeping an eye on the progression three months, six months, a year, and two years after the initiation of orthodontic treatment reveals a statistically significant difference in the presence of gingival hyperplasia. Conclusion: Patients' periodontal health before, during, and after fixed orthodontic treatment shows the need for close collaboration between the orthodontist and the periodontist.

12.
J Pharm Bioallied Sci ; 15(Suppl 2): S984-S986, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37693960

RESUMEN

Background: Although oral cancer is known to be particularly aggressive and to have a poor prognosis, early detection is often connected with a better outlook. Consequently, the purpose of this research was to evaluate dental students' and interns' understanding of oral cancer prevention strategies and practices, as well as their motivations for engaging in such efforts. Material and Methods: The dental interns and undergraduates in their last years of the dental school participated in a cross-sectional questionnaire study. All eligible participants (N = 300) were asked to fill out a 48-item questionnaire on oral cancer prevention and early detection. The questionnaire was broken down into four parts covering demographic information, knowledge, behaviors, and attitudes. Results: The percentage of people who answered the survey was 65% (N = 300). Interns outperformed dentistry school freshmen by a substantial margin (P = 0.05) on tests of both knowledge and attitude. Some people avoid being screened for oral cancer because they feel they do not have the knowledge, skills, self-assurance, or time to do so effectively. Conclusions: The majority of those polled in this research seemed to lack the necessary knowledge and abilities in mouth cancer prevention and early detection, but they had high levels of desire and a positive outlook toward oral cancer preventive education.

13.
J Pharm Bioallied Sci ; 15(Suppl 2): S993-S996, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37694007

RESUMEN

Background: Minimally invasive dentistry (MID) includes caries detection using caries risk assessment (CRA), early localization of nascent carious sores including necessary and voluntary avoidance, and remineralization of demineralized veneer and dentin when diagnosed early for these reasons. Although the dentistry curriculum prioritizes the benefits of MID in tooth protection, this research is seldom included in classroom instruction. Aim: The purpose of this research was to gauge the level of understanding that dental professionals have about MID ideas. Methods: An online questionnaire measuring MID knowledge and application was used to compile the data. The Chi-square tests were run for statistical analysis in the Statistical Package for the Social Sciences (SPSS). Results: Just 42.2% of the dentists who replied had MID training during their undergraduate or internship years, and the majority of that training came via lectures (45.2%). The majority (almost 81%) of respondents believed that CRA should be performed on all patients. Differences in knowledge and experience with atraumatic restorative therapy and the sandwich approach for treating caries in permanent teeth and high caries risk children were shown to be statistically significant (P 0.05). Conclusion: Dentists know about the benefits of MID, but their patients are not reaping those benefits since so many dentists still use the old methods of treating complete caries.

14.
J Pharm Bioallied Sci ; 15(Suppl 2): S997-S999, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37694029

RESUMEN

Aim: The purpose of this epidemiological research was to determine how common temporomandibular disorder (TMD) symptoms are. Materials and Methods: Among the outpatient population, a sample of 100 people was chosen at random. A patient survey was presented to each person, and points were allotted based on their responses. Participants were categorized as having no symptoms of TMD, mild TMD, moderate TMD, or severe TMD based on their total score. Results: One hundred adults aged 18 and above were selected from the general public to take part in the research. Temporomandibular disorder was present in no more than 30% of those studied, in the mild range in 50%, in the moderate range in 15%, and in the severe range in 5%. 0.602 was determined to be the dependability of Fonseca's questionnaire. Conclusion: The Fonseca questionnaire is a useful instrument for gauging the extent to which TMD symptoms are present in a given population. The screening questionnaire may be received in a short amount of time and for little money, making it a good option for public health services.

15.
J Pharm Bioallied Sci ; 15(Suppl 2): S977-S980, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37694066

RESUMEN

Aim: The purpose of this study was to determine which factors contribute to the development of oral precancerous lesions and subsequent mouth cancer. Materials and Methods: Throughout the trial, 450 patients agreed to participate in the investigation. The subjects comprised patients with squamous cell carcinoma (n = 79), oral submucous fibrosis (OSF) (n = 200), leukoplakia (n = 41), lichen planus (n = 10), and controls (n = 120). Statistical analysis of the data was carried out using the Chi-square and regression analysis. Results: All oral precancerous lesions were shown to have a high prevalence of chewing, which was found to have a strong link with oral cancer. Oral precancerous lesions and cancer were also substantially connected with the length of time someone had the habit and how often they engaged in it. Conclusion: Oral cancer and precancerous lesions were determined to be less of a worry when other risks such as drinking and smoking were taken into account.

16.
J Pharm Bioallied Sci ; 15(Suppl 2): S1250-S1252, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37694083

RESUMEN

Background: Our goal in conducting this study was to see how well-informed patients are about dental implants as a method of prosthodontic rehabilitation. Materials and Methods: "In this cross-sectional study, 500 new dental students were asked questions using a pre-made, self-administered questionnaire. A pilot study was carried out to verify the reliability of the survey instrument. Analysis of the data was performed in SPSS 16 (SPSS). We used the P 0.05 thresholds for the Student's T-test and the ANOVA to determine statistical significance." Results: In all, there were 500 people involved: 320 men and 180 women. The media and dentists were the two most common places to learn about implants, and as patients received more information, they became more informed consumers. Many people put off getting therapy because of how expensive it is. Conclusion: Only a small percentage of individuals had implants, and more than half knew nothing about them. This finding also highlighted the need of educating patients more thoroughly on this therapy option. As a result, the public has to be educated about oral health and implants in order to adopt a more favorable perspective.

17.
J Pharm Bioallied Sci ; 14(Suppl 1): S526-S529, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-36110601

RESUMEN

Background: The erbium-doped yttrium aluminium garnet (Er:YAG) laser has been revealed to effectively ablate dental hard tissues, and its utilisation to caries eradication and cavity preparation is envisaged. Nevertheless, only a limited research has been performed on the Er:YAG laser's capacity to treat caries. Aim and Objectives: The efficiency of caries elimination with an Er:YAG laser in vitro was equated to that of traditional mechanical therapy in this study. Methodology: The investigation made use of teeth that had suffered from root caries. The Er:YAG laser was used to treat half of each tooth, while the other half was either removed with a conventional bur or left untouched as a control. Each therapy was evaluated in terms of how long it took to remove cavities, histological examinations of decalcified serial sections, scanning electron microscopy (SEM) analyses and the density of the dentin. Result: A longer treatment time was required for the Er:YAG laser to completely eradicate carious dentin because of its precise irradiation strategy. However, the Er:YAG laser was effective in removing diseased and softening carious dentin with little heat injury to neighbouring intact dentin, much as the bur treatment. It was also shown that the Er:YAG laser treatment had a lower amount of vibration than other methods. The SEM study of the lased dentin surface revealed characteristic micro-irregularities. Conclusion: The Er:YAG laser system appears to be a potential novel technical option for caries therapy, based on our findings.

18.
J Pharm Bioallied Sci ; 14(Suppl 1): S541-S544, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-36110724

RESUMEN

Aim: The trial's goal was to assess the retentiveness of specially formulated implant cement besides comparing it to dental cements that are widely utilized by means of implant systems. Materials and Procedures: Twenty implant analogs were implanted in auto-polymerizing acrylic resin blocks and bonded to titanium abutments. Fifty uniform copings were waxed and cast unswervingly onto the abutment. (1) Resin-bonded zinc oxide eugenol cement, (2) purposefully designed implant cement, (3) zinc phosphate cement, (4) zinc polycarboxylate cement, and (5) glass ionomer cement were the cements used. Following cementation, each sample was pulled out by utilizing a widespread testing machine, and the stresses necessary to confiscate the crowns were recorded. The ANOVA and Bonferroni tests were used to examine the mean values and standard deviations of cement failure loads. Results: Zinc polycarboxylate cement had the peak mean cement failure load, followed by glass ionomer cement. Zinc phosphate cement had the next highest mean cement failure load, followed by resin-bonded zinc oxide eugenol cement. The mean cement failure load for Premier implant cement was the lowest. The difference in mean cement failure loads across the groups was statistically significant (P < 0.001). Conclusion: The findings do not imply that one type of cement is superior to another, but they do present a ranking directive of cements based on their capacity to maintain the prosthesis and facilitate retrievability.

19.
J Pharm Bioallied Sci ; 14(Suppl 1): S530-S533, 2022 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-36110744

RESUMEN

Background: Periodontal and peri-implant disorders are etiologically linked to bacterial biofilms. The researchers wanted to see how well the erbium-doped yttrium aluminum garnet (Er:YAG) laser removed bacterial biofilms along with attached epithelial cells (EC), gingival fibroblasts (GF), in addition to osteoblast-like cells (OC) dentin along with titanium surfaces compared to previous therapy methods. Methodology: 3.5 days were spent growing bacterial biofilms on standardized dentin and also titanium samplings using a sand-blasted along with the acid-etched surface. Following that, the specimens were positioned into pockets that had been formed artificially. The following approaches were used to remove biofilm: (1) Er:YAG, (2) photodynamic therapy (PDT), and (3) curette (CUR) along with supplementary PDT (CUR/PDT). The remaining biofilms' colony forming units (CFUs) were determined, as well as the attachment of EC, GF, in addition to OC. Analysis of variance with a posthoc least significant difference was utilized in the statistical analysis. Results: When compared to untreated dentin and titanium surfaces, all therapy strategies reduced total CFUs in statistically significant biofilms (p = 0.001). On the dentin, Er:YAG was as effective as CUR and PDT, but not as effective as CUR/PDT (p = 0.005). The application of Er:YAG on titanium surfaces leads to statistically significantly improved biofilm eradication equated to the supplementary three therapies (all p = 0.001). On untouched infested dentin and titanium surfaces, the counts of attached EC, GF, and OC were the lowermost. Atop the dentin, increased EC counts were detected after CUR/PDT (p = 0.006). On titanium, all cleaning procedures increased the counts of attached EC by a statistically significant amount (p = 0.001), with no variations between groups. After Er:YAG decontamination, there were statistically substantially elevated amounts of GF (p = 0.024) and OC (p = 0.001) than on untreated surfaces. Conclusion: The usage of Er:YAG laser to ablate subgingival biofilms and, specifically, to decontaminate titanium implant surfaces appears to be a promising strategy that needs further research.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA