Journal of Research in Dentistry最新文献

SPATIAL DISTRIBUTION OF MOLAR INCISOR HYPOMINERALIZATION (MIH) OPACITIES IN FIRST PERMANENT MOLARS 第一恒磨牙切牙低矿化（Mih）不透明的空间分布

Journal of Research in Dentistry Pub Date : 2024-07-03 DOI: 10.59306/jrd.v12e120249-16

Bruna Scheffelmeier, Rafael Augusto Boschi de Campos, Lucas Oliveira, Tatiane Rolim, Juliana Feltrin, Fabian Fraiz, C. Fragelli, Lourdes Santos Pinto

{"title":"SPATIAL DISTRIBUTION OF MOLAR INCISOR HYPOMINERALIZATION (MIH) OPACITIES IN FIRST PERMANENT MOLARS","authors":"Bruna Scheffelmeier, Rafael Augusto Boschi de Campos, Lucas Oliveira, Tatiane Rolim, Juliana Feltrin, Fabian Fraiz, C. Fragelli, Lourdes Santos Pinto","doi":"10.59306/jrd.v12e120249-16","DOIUrl":"https://doi.org/10.59306/jrd.v12e120249-16","url":null,"abstract":"Aim: To evaluate the spatial distribution of MIH opacities in first permanent molars (FPM). \u0000Materials and methods: an analysis of intraoral photographs of FPM with demarcated MIH opacities was conducted. The presence of opacity was computed in a digital matrix, discriminating the anatomical regions of the FPM surfaces. The frequencies of distribution of the opacities were descriptively analyzed through 227 FPM digital images of 89 children built in GIMP and Python and by Spearman correlation (= 0,05). \u0000Results: the occlusal surface was the most affected one (94% to 100%). In the upper FPM, the palatine surface was the second most affected one (84%-91%). In the lower FPM, the vestibular surface was the second most affected one (85%-80%). A similar pattern of opacity distribution was observed in the contralateral teeth. On smooth surfaces, opacities were more frequent in the regions closer to the occlusal surface than to the cervical one. \u0000Conclusion: MIH opacities were mostly present on occlusal, vestibular, and lingual/palatine surfaces, respectively. There is a possibility that the occurrences are in accordance with the chronology of dental formation. \u0000Keywords: Molar Incisor Hypomineralization, First Permanent Molars, Dental photography, intraoral photography","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"110 11","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141683460","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}

引用次数: 0

Topographic analysis of fiber posts after surface disinfection with different methods 用不同方法对纤维柱进行表面消毒后的地形分析

Journal of Research in Dentistry Pub Date : 2024-07-03 DOI: 10.59306/jrd.v12e1202417-22

Victoria Melcchiades Baltezan, Gustavo Golgo Kunert, Tiago Melo Tiago André Fontoura de Melo

{"title":"Topographic analysis of fiber posts after surface disinfection with different methods","authors":"Victoria Melcchiades Baltezan, Gustavo Golgo Kunert, Tiago Melo Tiago André Fontoura de Melo","doi":"10.59306/jrd.v12e1202417-22","DOIUrl":"https://doi.org/10.59306/jrd.v12e1202417-22","url":null,"abstract":"Aims: This study aims to comprehensively examine the surface morphology of fiber posts after undergoing various disinfection methods, utilizing scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). Materials and Methods: Twenty-one fiber posts were randomly allocated into seven experimental groups, each consisting of three samples. The disinfection methods employed were as follows: GC - no disinfection treatment; GAL - immersion in 70% alcohol, following the manufacturer's recommended protocol; GHP - soaking in 2.5% sodium hypochlorite for a duration of 10 minutes; GCL - soaking in 2% chlorhexidine gluconate for a period of five minutes; GAC - 30-second etching with 35% phosphoric acid; GPH - soaking in 10% hydrogen peroxide for a duration of 20 minutes; and GSL - autoclave sterilization. Following the disinfection procedures, SEM was employed to scrutinize the surface topography of the posts, while EDX was utilized to identify the chemical elements present on the sample surfaces. Subsequently, a descriptive analysis was conducted on the SEM images and EDX data. Results: SEM analysis revealed that all groups exhibited regions with epoxy resin-coated fibers alongside sections with exposed glass fibers. Analysis of the EDX data indicated that there were no significant differences in the predominant chemical elements across the groups. Carbon (C) and oxygen (O) registered the highest peaks, followed by silicon (Si), zirconium (Zr), sodium (Na), aluminum (Al), and calcium (Ca). Conclusions: The disinfection methods under investigation did not induce substantial alterations in the surface morphology of the fiber posts.","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"104 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141683614","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}

引用次数: 0

Quality analysis of four filling techniques in ovoid root canals prepared with M® instruments 使用 M® 型器械制备的卵形根管中四种充填技术的质量分析

Journal of Research in Dentistry Pub Date : 2024-07-03 DOI: 10.59306/jrd.v12e1202423-28

L. Rech, Fabiana Soares Grecca, Tiago André Fontoura de Melo

{"title":"Quality analysis of four filling techniques in ovoid root canals prepared with M® instruments","authors":"L. Rech, Fabiana Soares Grecca, Tiago André Fontoura de Melo","doi":"10.59306/jrd.v12e1202423-28","DOIUrl":"https://doi.org/10.59306/jrd.v12e1202423-28","url":null,"abstract":"Aims: This study aimed to assess the quality of various filling techniques in ovoid root canals prepared using M® instruments. Materials and Methods: Sixty ovoid root canals underwent endodontic treatment with M® instruments and were subsequently divided randomly into four experimental groups, each employing a different obturation technique: TU - single cone; TL - active lateral condensation; TH - Tagger hybrid; TS - Schilder technique. Digital radiographs were taken in both mesiodistal and buccolingual directions to examine the filled teeth. The percentage of filling material and empty spaces was quantified using Photoshop® software. Data were subjected to statistical analysis using the one-way ANOVA test and T test (? = 0.05). Results: In the TL and TS groups, there was a significantly lower average percentage of unfilled spaces compared to the TU and TH groups (P<0.0001). When analyzing the radiographic directions, the mesiodistal view exhibited the highest mean percentage of unfilled spaces, with differences in filling quality observed only in the TU and TL groups. Conclusions: Active lateral condensation and Schilder techniques demonstrated superior performance in achieving effective filling of ovoid root canals.","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"156 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141681793","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}

引用次数: 0

EVALUATION OF INTRAOPERATIVE PAIN OCCURRENCE AND NEED FOR SUPPLEMENTAL ANESTHESIA DURING EMERGENCY DENTAL CARE 牙科急诊中术中疼痛发生率和补充麻醉需求评估

Journal of Research in Dentistry Pub Date : 2024-07-03 DOI: 10.59306/jrd.v12e120241-8

A. Mendes, T. Weissheimer, F. Barletta, Jefferson Ricardo Pereira, G. B. Só, Ricardo Abreu da Rosa, M. Só

{"title":"EVALUATION OF INTRAOPERATIVE PAIN OCCURRENCE AND NEED FOR SUPPLEMENTAL ANESTHESIA DURING EMERGENCY DENTAL CARE","authors":"A. Mendes, T. Weissheimer, F. Barletta, Jefferson Ricardo Pereira, G. B. Só, Ricardo Abreu da Rosa, M. Só","doi":"10.59306/jrd.v12e120241-8","DOIUrl":"https://doi.org/10.59306/jrd.v12e120241-8","url":null,"abstract":"\u0000\u0000\u0000Aims: This study aimed to evaluate the intraoperative pain (IOP) occurrence in situations of symptomatic irreversible pulpitis (SIP) and symptomatic apical periodontitis (SAP).Materials and Methods: Patients who sought emergency care presenting a diagnosis of SIP or SAP were included. IOP was measured with a Visual Analogue Scale (VAS) after five minutes of local anesthesia, during access to the pulp chamber, root canal exploration and at the end of procedures. In cases where pain was reported during treatment, supplementary anesthesia was performed. Pain scores were recorded and analyzed using a generalized estimating equation model with posthoc comparisons. Results: 56 patients were included. 35 had a diagnosis of SIP; and 21 a diagnosis of SAP. Mean preoperative pain scores for SAP and SIP were 6.69 (±1.54) and 6.39 (±1.48), respectively (p>0.05). In patients with SIP, significant differences were observed between: preoperative scores and other time points; scores after five minutes of local anesthesia and other time points; scores during pulp chamber access and at the end of procedures; and scores during root canal exploration and at the end of procedures (p<0.05). In patients with SAP, significant differences were observed between preoperative pain scores with all other time points (p<0.05). Chi-square test indicated an association between diagnosis and the need for supplementary anesthesia (p<0.05).\u0000Conclusions: In conclusion, there is a strong relationship between reduction of moderate/severe pain after application of local anesthesia. The need for supplemental anesthesia is significantly associated to the diagnosis of symptomatic irreversible pulpitis.\u0000\u0000\u0000","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":" 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141681079","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}

引用次数: 0

Treatment of lingual nerve paresthesia through photobiomodulation therapy: a case report employing an approach integrating extraoral and intraoral modalities 通过光生物调节疗法治疗舌神经麻痹：采用口外和口内综合疗法的病例报告

Journal of Research in Dentistry Pub Date : 2024-07-03 DOI: 10.59306/jrd.v12e1202429-34

A. F. Gabriel, Júlia Breda Soares, Laura Borges Kirschinick, Tiago Fiorini, Ana Cecília Aranha, Marco Antônio Trevizani Martins, Manoela Domingues Martins

{"title":"Treatment of lingual nerve paresthesia through photobiomodulation therapy: a case report employing an approach integrating extraoral and intraoral modalities","authors":"A. F. Gabriel, Júlia Breda Soares, Laura Borges Kirschinick, Tiago Fiorini, Ana Cecília Aranha, Marco Antônio Trevizani Martins, Manoela Domingues Martins","doi":"10.59306/jrd.v12e1202429-34","DOIUrl":"https://doi.org/10.59306/jrd.v12e1202429-34","url":null,"abstract":"Aims: Oral nerve injuries are the primary cause of paresthesia in the head and neck regions.\u0000To report the managing of a combined protocol involving extraoral and intraoral photobiomodulation (PBM) therapy for lingual nerve paresthesia.\u0000Case report: A 38-year-old female patient underwent 25 PBM sessions using laser with dual wavelength infrared (810nm + 980 nm). The extraoral application included 6 seconds and 6J per point. per point, 1W, 4.91 cm², 1.2 J/cm. The intraoral protocol with 0.3W of power, a spot size of 0.38 cm², 15.78 J/cm² of energy density, 6J of energy per point, for 20 seconds.\u0000Results: Assessment of neurosensitivity on the dorsum of the tongue was a 75% improvement. On the lateral tongue improved to 50%. In the floor of the mouth, PBM demonstrated a 25% improvement.\u0000Conclusion: PBM is an important treatment option in the case of lingual nerve paresthesia. The use of PBM should be considered as a feasible, non-invasive treatment approach.","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"102 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141683788","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}

引用次数: 0

ASSESSMENT OF TORSION RESISTANCE OF GLIDE PATH ROTARY INSTRUMENTS 滑行道旋转仪表抗扭性能评价

Journal of Research in Dentistry Pub Date : 2023-05-03 DOI: 10.59306/jrd.v11e120237-13

Graziella Pelegrini, G. B. Só, M. Alcalde, R. Vivan, M. Duarte, F. Barletta

{"title":"ASSESSMENT OF TORSION RESISTANCE OF GLIDE PATH ROTARY INSTRUMENTS","authors":"Graziella Pelegrini, G. B. Só, M. Alcalde, R. Vivan, M. Duarte, F. Barletta","doi":"10.59306/jrd.v11e120237-13","DOIUrl":"https://doi.org/10.59306/jrd.v11e120237-13","url":null,"abstract":"NiTi endodontic instruments for glide path are the most susceptible to fractures inside the root canal, mainly as a result of high torsional stress. Objective: The present study investigated the resistance to torsion and angular deflection of instruments destined for the glide path: ProGlider #16.02; T-File #17.02 and the MK Life #16.02. Materials and methods: Thirty rotating NiTi glide path instruments (n=10) with 25mm lengths were selected. The torsion test was performed based on ISO 3630-01 (1992). Three millimeters from the tip of the instruments, it was attached to a small load cell by a lever arm connected to the torsion shaft. Torsional strength and angular deflection were evaluated. Fracture surfaces were examined by scanning electron microscopy with magnifications of 1000x and 5000x in the cross section, and 50x in the lateral section. Statistical analysis was performed using the Kruskal-Wallis H test, followed by the Down's post hoc test. Results: The ProGlider instrument showed greater torsional strength (p<0.05) compared to the T-File (p<0.05) and MK Life (p<0.05), respectively. However, the T-File showed greater angular deflection (p<0.05) than the other groups tested. Conclusion: It can be concluded that the ProGlider instrument presented greater torque for the fracture, while the T-File instrument presented greater angular deflection. \u0000 \u0000 ","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124400126","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}

引用次数: 0

RADIOGRAPHIC EVALUATION OF THE SUCCESS OF IMPLANT-SUPPORTED TOTAL PROSTHESES ON CONICAL EXTERNAL HEXAGON IMPLANTS AND 6-MONTH FOLLOW-UP AFTER INSTALLATION OF THE PROSTHESES. 种植体支持全假体在锥形外六边形种植体上成功的影像学评价及安装后6个月的随访。

Journal of Research in Dentistry Pub Date : 2023-05-03 DOI: 10.59306/jrd.v11e120231-6

Henrique Rufino, Eduarda Braz, G. Molina

引用次数: 0

Does the activation of root canal dressings improve their filling quality on teeth with simulated internal root resorption? 激活根管敷料是否能改善模拟根内吸收的牙齿充填质量?

Journal of Research in Dentistry Pub Date : 2023-05-03 DOI: 10.59306/jrd.v11e1202314-19

G. B. Só, Larissa Basso Arpini, Leonardo Thomasi Jahnke, W. Krabbe, Natália Backa Abrahão, Lucas Siqueira Pinheiro, Marcus Vinícius Reis Só, Ricardo Abreu da Rosa

{"title":"Does the activation of root canal dressings improve their filling quality on teeth with simulated internal root resorption?","authors":"G. B. Só, Larissa Basso Arpini, Leonardo Thomasi Jahnke, W. Krabbe, Natália Backa Abrahão, Lucas Siqueira Pinheiro, Marcus Vinícius Reis Só, Ricardo Abreu da Rosa","doi":"10.59306/jrd.v11e1202314-19","DOIUrl":"https://doi.org/10.59306/jrd.v11e1202314-19","url":null,"abstract":"This study aims to evaluate, by micro-computed tomography, the filling capacity of two root canal dressings (RCD) - Bio-C Temp and Ultracal - after different activation protocols in teeth with simulated internal root resorption. Eighty single-rooted bovine teeth were sectioned in the cervical portion, standardizing the roots at 16 mm. Then, the canals were prepared by the apex-crown technique until instrument #80 using 2mL of 2.5% sodium hypochlorite solution at each instrument change. Afterward, the roots were sectioned longitudinally, and internal root resorptions were simulated using a diamond bur 1016 at 5 mm from the root apex. Hemiroots were joined and fixed with cyanoacrylate, scanned in micro-computed tomography (micro-CT) to assess total canal volume and simulated internal resorption, and then divided by stratified randomization into experimental groups according to RCD and method of activation (n = 10): Ultracal/Syringe; Ultracal/PUI, Ultracal/XP Endo Finisher, Ultracal Easy Clean, Bio-C Temp/Syringe, Bio-C Temp/PUI, Bio-C Temp/XP Endo Finisher and Bio-C/Easy Clean. Another scanning was performed to assess the volume of voids after RCD activation methods. The ANOVA and Tukey tests compared the activation methods. Student's T-test compared the RCDs within each activation method. Initial root canal volume values were similar for all groups (P > 0.05). There was no difference between activation protocols (P > 0.05). Higher volumes of void spaces were observed for Bio-C Temp compared to Ultracal after all activation methods (P < 0.05), except for Easy Clean (P > 0.05). Due to this, it can be concluded that the agitation methods tested for the Bio-C Temp and Ultracal pastes did not improve the filling of bovine teeth with simulated internal root resorption. \u0000 ","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131421170","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}

引用次数: 0

Root perforating internal replacement resorption: a case report clinical with 10-year follow-up 根孔内置换术吸收1例临床随访10年

Journal of Research in Dentistry Pub Date : 2023-01-06 DOI: 10.59306/jrd.v10e420226-11

W. Krabbe, Luiza Brum Porto, Bárbara Foster Almeida, Márcia Helena Wagner, Ricardo Abreu da Rosa

引用次数: 0

Addition of MTA in a salicylate-based resin root canal sealer to retrograde root-end filling 在水杨酸基树脂根管密封器中添加MTA以逆行根端充填

Journal of Research in Dentistry Pub Date : 2023-01-06 DOI: 10.59306/jrd.v10e420221-5

Giovanna Righetti Bravo, Jardel Camilo Do Carmo Monteiro, Marcus Vinícius Reis Só, Mariana Bena Gelio, Anna Thereza Peroba Rezende Ramos, M. Kuga

{"title":"Addition of MTA in a salicylate-based resin root canal sealer to retrograde root-end filling","authors":"Giovanna Righetti Bravo, Jardel Camilo Do Carmo Monteiro, Marcus Vinícius Reis Só, Mariana Bena Gelio, Anna Thereza Peroba Rezende Ramos, M. Kuga","doi":"10.59306/jrd.v10e420221-5","DOIUrl":"https://doi.org/10.59306/jrd.v10e420221-5","url":null,"abstract":"Aim To evaluate the flow, pH and calcium release of white MTA (WMTA), salicylate-based resin root canal sealer (Sealapex; SEAL) and SEAL containing 10 (SE10) or 20% (SE20) (w/w) of MTA. Methodology Flow test was realized according to ISO 6876 specification. The sealers samples (n= 10) were placed in polyethylene tubes and immersed in deionized water. After 24 hours and 7, 14, and 28 days, the water pH was determined with a pH meter, and calcium release was assessed by atomic absorption spectrophotometry. Results SEAL and WMTA showed respectively the highest and lowest flow rate when compared with the other materials (P<0.05). SE20 showed the highest pH value only in 24h and 7 days periods (p<0.05). In 14- and 28-days periods, SEAL showed the lowest pH value (p<0.05), but there are no differences between other groups (p>0.05). In all periods, WMTA and SEAL respectively showed the highest and lowest calcium release (p<0.05). Conclusions SE20 proves to be an association with better flow and handling than WMTA, with satisfactory potential for alkalinization and calcium release.","PeriodicalId":213881,"journal":{"name":"Journal of Research in Dentistry","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125302928","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}

引用次数: 0