Brazilian dental journal最新文献

A new hydroxyapatite-alginate-gelatin biocomposite favor bone regeneration in a critical-sized calvarial defect model 一种新型羟基磷灰石-海藻酸盐-明胶生物复合材料有利于临界大小腓骨缺损模型中的骨再生

Brazilian dental journal Pub Date : 2024-05-10 DOI: 10.1590/0103-6440202405461

Anderson Cunha dos Santos, M. A. Aroni, S. C. Pigossi, M. E. S. Lopes, Paulo Sergio Cerri, F. Miguel, Silvia Rachel de Albuquerque Santos, J. Cirelli, F. P. Rosa

{"title":"A new hydroxyapatite-alginate-gelatin biocomposite favor bone regeneration in a critical-sized calvarial defect model","authors":"Anderson Cunha dos Santos, M. A. Aroni, S. C. Pigossi, M. E. S. Lopes, Paulo Sergio Cerri, F. Miguel, Silvia Rachel de Albuquerque Santos, J. Cirelli, F. P. Rosa","doi":"10.1590/0103-6440202405461","DOIUrl":"https://doi.org/10.1590/0103-6440202405461","url":null,"abstract":"Abstract This study aimed to evaluate the osteogenic potential of hydroxyapatite (HA), Alginate (Alg), and Gelatine (Gel) composite in a critical-size defect model in rats. Twenty-four male rats were divided into three groups: a negative control with no treatment (Control group), a positive control treated with deproteinized bovine bone mineral (DBBM group), and the experimental group treated with the new HA-Alg-Gel composite (HA-Alg-Gel group). A critical size defect (8.5mm) was made in the rat's calvaria, and the bone formation was evaluated by in vivo microcomputed tomography analysis (µCT) after 1, 15, 45, and 90 days. After 90 days, the animals were euthanized and histological and histomorphometric analyses were performed. A higher proportion of mineralized tissue/biomaterial was observed in the DBBM group when compared to the HA-Alg-Gel and Control groups in the µCT analysis during all analysis periods. However, no differences were observed in the mineralized tissue/biomaterial proportion observed on day 1 (immediate postoperative) in comparison to later periods of analysis in all groups. In the histomorphometric analysis, the HA-Alg-Gel and Control groups showed higher bone formation than the DBBM group. Moreover, in histological analysis, five samples of the HA-Alg-Gal group exhibited formed bone spicules adjacent to the graft granules against only two of eight samples in the DBBM group. Both graft materials ensured the maintenance of defect bone thickness, while a tissue thickness reduction was observed in the control group. In conclusion, this study demonstrated the osteoconductive potential of HA-Alg-Gel bone graft by supporting new bone formation around its particles.","PeriodicalId":9211,"journal":{"name":"Brazilian dental journal","volume":" 39","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140993957","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

Can a dentin bonding agent prevent color change in regenerative endodontic procedures? An in vitro evaluation 牙本质粘接剂能否防止再生牙髓治疗过程中的颜色变化？体外评估

Brazilian dental journal Pub Date : 2024-05-10 DOI: 10.1590/0103-6440202405550

Eduardo Trota Chaves, Laura Lourenço Morel, F. G. Pappen, F. F. Demarco, Luciane Geanini Pena Santos

{"title":"Can a dentin bonding agent prevent color change in regenerative endodontic procedures? An in vitro evaluation","authors":"Eduardo Trota Chaves, Laura Lourenço Morel, F. G. Pappen, F. F. Demarco, Luciane Geanini Pena Santos","doi":"10.1590/0103-6440202405550","DOIUrl":"https://doi.org/10.1590/0103-6440202405550","url":null,"abstract":"Abstract This in vitro study aimed to determine the efficacy of dentin bonding agents in preventing color changes following Regenerative Endodontic Procedures. One hundred twenty bovine incisors were endodontically prepared and randomly assigned to a two main factors design: application of a dentin bonding agent (Scotchbond Adper, 3M ESPE, St Paul, MN, USA) in the pulp chamber (Group 1, n=60) versus no bonding intervention (Group 2, n=60), and five levels of intracanal medication (n=12/subgroup): Triple antibiotic paste (TAP), double antibiotic paste (DAB), calcium hydroxide (CH), modified triple antibiotic paste (TAPM), and Control (CTL). Color changes were measured over 28 days at multiple time points (1, 3, 7, 14, 21, and 28 days) using the CIEDE2000 formula to calculate the color difference (ΔE00) from baseline (T0). The ΔE00 quantifies the perceptible color difference between the initial and final tooth color, with lower values indicating less discoloration. The results were analyzed using repeated measures ANOVA-2 and post-hoc Holm-Sidak tests. The TAP subgroups, both with and without the bonding agent, exhibited the highest color variation. However, a pulp chamber seal with a bonding agent showed a protective effect against discoloration compared to no seal, even though complete prevention was not achieved. All groups demonstrated ΔE00 values beyond acceptable interpretation thresholds for clinical application, primarily driven by a reduction in lightness (L*) and a decrease in redness (a* value, shifting towards green). In conclusion, while the pulp chamber seal with a bonding agent mitigated TAP-induced discoloration, it did not eliminate it.","PeriodicalId":9211,"journal":{"name":"Brazilian dental journal","volume":" 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140992302","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

Antibacterial ability of different activated irrigation after root canal preparation: intratubular analyses 根管预备后不同活性冲洗剂的抗菌能力：管内分析

Brazilian dental journal Pub Date : 2024-05-10 DOI: 10.1590/0103-6440202405883

C. K. Nabeshima, H. Caballero-Flores, Elisabete José Vicente, G. Gavini, M. Machado

{"title":"Antibacterial ability of different activated irrigation after root canal preparation: intratubular analyses","authors":"C. K. Nabeshima, H. Caballero-Flores, Elisabete José Vicente, G. Gavini, M. Machado","doi":"10.1590/0103-6440202405883","DOIUrl":"https://doi.org/10.1590/0103-6440202405883","url":null,"abstract":"Abstract This study assessed the intratubular antibacterial ability of different activated irrigations after chemical mechanical preparation. Seventy-two palatal root canals of upper molars were infected with Enterococcus faecalis for 4 weeks, and then initial bacterial collection from the main root canal was performed. The root canals were prepared by using a WaveOne Gold large (45/.05) and distributed into 6 groups according to the activation of the final irrigation: ultrasonic activation (UA), XP-Endo Finisher (25/.00), XP Clean (25/.02), EasyClean (25/.04) in reciprocating motion and continuous rotary motion (ECRot), and conventional irrigation. After final irrigation, another bacterial collection from the main root canal was performed, and the root was sectioned transversely in three-thirds and stained for analysis by confocal laser microscopy. Intratubular bacteria were collected through dentin powder and plated for bacterial viability analysis. Intergroup and intragroup comparisons were performed by using analysis of variance and repeated measures analysis of variance, respectively, both at 5% significance. ECRot had higher antibacterial ability than UA (p<0.05), and both were superior to the other groups (p<0.05) in both methodologies. It can be concluded that activation of final irrigation enhances the disinfection of the root canal system, and activators have different efficacies","PeriodicalId":9211,"journal":{"name":"Brazilian dental journal","volume":" 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140992894","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

Inhibition of incipient caries lesion progression by different fluoridated varnishes 不同含氟清漆对龋病初期发展的抑制作用

Brazilian dental journal Pub Date : 2024-05-10 DOI: 10.1590/0103-6440202405616

Marcela Paris Mainente, Paula Andery Naves, P. Campos, M. Rodrigues, Michele Baffi Diniz, Wanessa Christine de Souza Zaroni, C. Cardoso

{"title":"Inhibition of incipient caries lesion progression by different fluoridated varnishes","authors":"Marcela Paris Mainente, Paula Andery Naves, P. Campos, M. Rodrigues, Michele Baffi Diniz, Wanessa Christine de Souza Zaroni, C. Cardoso","doi":"10.1590/0103-6440202405616","DOIUrl":"https://doi.org/10.1590/0103-6440202405616","url":null,"abstract":"Abstract The aim of this in vitro study was to evaluate the potential of different fluoridated varnishes to inhibit the progression of incipient caries lesions after cariogenic challenge. Seventy-five enamel specimens of bovine teeth were prepared and selected based on the initial surface microhardness (SMH). The specimens were first subjected to artificial demineralization (in buffer solution) after which SMH was re-analyzed (SM1). They were then randomly assigned to five experimental groups: 1- CONTROL (pH cycling), 2 - MI VAR (MI Varnish with RECALDENTTM - CPP-ACP), 3 - PROFL (Profluorid®), 4 - CLIN (ClinproTM White Varnish with TCP), and 5 - DUR (Duraphat®) (n=15). The varnishes were applied in a thin layer and the specimens were then subjected to pH cycling for eight days. The SMH and cross-sectional microhardness (CSMH) were then analyzed (SM2). The fluoride and calcium ion concentrations in the solution were analyzed by the indirect method and atomic absorption spectrophotometry, respectively. Data were statistically analyzed by Student’s t-test, ANOVA/Tukey-Kramer, or Kruskall-Wallis/Dunn tests for individual comparisons (p˂0.05). All varnishes led to significantly higher surface and subsurface remineralization compared with the control group but did not differ from each other. The varnishes with the highest fluoride release were: PROFL and CLIN, followed by MI VAR and DUR. The varnishes with significantly higher release of calcium were: DUR, CLIN, and PROFL. In conclusion, all commercial fluoridated varnishes tested have good potential to inhibit the progression of demineralization, regardless of the ion release mechanisms.","PeriodicalId":9211,"journal":{"name":"Brazilian dental journal","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140992899","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

In vitro and in situ caries-preventive effect of a new combined fluoride and calcium experimental nanocomposite solution. 一种新型氟钙复合纳米复合材料实验溶液的体外和原位防龋效果。

Brazilian dental journal Pub Date : 2023-05-01 DOI: 10.1590/0103-6440202305460

Karla Lorene de França Leite, Mariana Leonel Martins, Millene de Oliveira Dias, Fernanda Oliveira Miranda Tavares, Isabella Barbosa Dos Santos Justino, Lúcio Mendes Cabral, Aline de Almeida Neves, Yuri Wanderley Cavalcanti, Lucianne Cople Maia

{"title":"In vitro and in situ caries-preventive effect of a new combined fluoride and calcium experimental nanocomposite solution.","authors":"Karla Lorene de França Leite, Mariana Leonel Martins, Millene de Oliveira Dias, Fernanda Oliveira Miranda Tavares, Isabella Barbosa Dos Santos Justino, Lúcio Mendes Cabral, Aline de Almeida Neves, Yuri Wanderley Cavalcanti, Lucianne Cople Maia","doi":"10.1590/0103-6440202305460","DOIUrl":"10.1590/0103-6440202305460","url":null,"abstract":"To assess the in vitro and in situ effect of experimental combined fluoride and calcium nanocomposite solutions on dental caries prevention. Nanocompound mesoporous silica (MS) with calcium (Ca) and sodium fluoride (NaF) - (MSCaNaF); MS with NaF (MSNaF), NaF solution (positive control), and deionized water (negative control - CG) were studied. The specimens (n=130) were submitted in vitro to a multispecies biofilm in the presence of 2% sucrose. After 24 h and 48 h, the culture medium pH, the percent of surface mineral loss (%SML), and lesion depth (ΔZ) were analyzed. In the in situ study, 10 volunteers participated in four phases of 7-days each. The products were applied on the specimens (n=240) before 20% sucrose solution drips. The polysaccharides (SEPS and IEPS), %SML and roughness (Sa) were evaluated. There was an in vitro decrease in pH values in 24h and 48h, compared to baseline. The MSCaNaF and MSNaF groups obtained lower values of %SML and ΔZ (p < 0.05) than CG and NaF after 24h and were similar to NaF after 48h (p<0.05). In situ results showed similar SEPS and IEPS among all groups after 48h. An after 7-days, the nanocomposites had similar values (p>0.05), while NaF was similar to CG (p>0.05). After 48h, the MSCaNaF and MSNaF reduced the %SML (p<0.05). After 7-days, both experimental nanocomposites were similar to NaF (p>0.05). Regarding Sa, MSCaNaF was better than NaF for both periods (p<0.05). The nanocomposites controlled the in vitro and in situ enamel demineralization, mainly in the initial periods.","PeriodicalId":9211,"journal":{"name":"Brazilian dental journal","volume":"34 3","pages":"119-128"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10355272/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10220881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of different disinfection protocols in bacterial viability of an intraradicular biofilm formed in situ. 不同消毒方案对原位形成的根内生物膜细菌活力的影响。

Brazilian dental journal Pub Date : 2023-05-01 DOI: 10.1590/0103-6440202305244

Felipe Barros Matoso, Francisco Montagner, Alexander Pompermayer Jardine, Ramiro Martins Quintana, Fabiana Soares Grecca, Patricia Maria Poli Kopper

{"title":"Effect of different disinfection protocols in bacterial viability of an intraradicular biofilm formed in situ.","authors":"Felipe Barros Matoso, Francisco Montagner, Alexander Pompermayer Jardine, Ramiro Martins Quintana, Fabiana Soares Grecca, Patricia Maria Poli Kopper","doi":"10.1590/0103-6440202305244","DOIUrl":"10.1590/0103-6440202305244","url":null,"abstract":"The present study aimed to evaluate bacterial viability after the use of different disinfection protocols in root canals infected with a multispecies biofilm (MB) formed in situ. Palatal roots with a single canal were obtained from extracted maxillary molars and sterilized before being inserted into the mouth. The roots were contaminated with a MB in an intraoral appliance worn by ten volunteers. All volunteers wore six roots simultaneously in two intraoral devices for 21 days. One root from each volunteer was assigned to each group (n=10): PUI - passive ultrasonic irrigation; EC - Easy Clean; XPF - XP-endo Finisher; aPDT - antimicrobial photodynamic therapy; CI - conventional irrigation; and NC - negative control. The samples were evaluated under confocal laser scanning microscopy. The percentage of viable cells (VC) was calculated over the total percentage of MB biovolume. Data were statistically analyzed (α=5%). The cell viability in the entire root canal or for each third was compared between groups (Kruskal-Wallis test, Dunn post-hoc test) and for the same group (Friedman test, Dunn post-hoc test). Disinfection protocols were not significantly different from each other (P>.05). Samples in EC, PUI, and aPDT had lower cell viability than in NC (P<.05). In the coronal third of samples in the EC, XPF, PUI and aPDT, the percentage of VC biovolume was lower than in the NC (P<.05). The percentage of VC in EC samples was lower in the coronal and middle thirds than in the apical third (P<.05). EC, PUI and aPDT had significant effects on cell viability in intraradicular multispecies biofilm formed in situ when compared with untreated samples.","PeriodicalId":9211,"journal":{"name":"Brazilian dental journal","volume":"34 3","pages":"42-49"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10355264/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9844793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lycopene enhances bone neoformation in calvaria bone defects of ovariectomized rats. 番茄红素促进去卵巢大鼠颅骨骨缺损的骨新生。

Brazilian dental journal Pub Date : 2023-05-01 DOI: 10.1590/0103-6440202304980

Vitória Ricardo, Luiz Gustavo de Sousa, Isabela Hallak Regalo, Dimitrius Leonardo Pitol, Karina Fittipaldi Bombonato-Prado, Simone Cecilio Hallak Regalo, Selma Siessere

{"title":"Lycopene enhances bone neoformation in calvaria bone defects of ovariectomized rats.","authors":"Vitória Ricardo, Luiz Gustavo de Sousa, Isabela Hallak Regalo, Dimitrius Leonardo Pitol, Karina Fittipaldi Bombonato-Prado, Simone Cecilio Hallak Regalo, Selma Siessere","doi":"10.1590/0103-6440202304980","DOIUrl":"10.1590/0103-6440202304980","url":null,"abstract":"Osteoporosis can affect a significant part of the population and fractures are the most common complications associated with this disease, leading to high public health costs. Thus, the prevention of fractures is relevant to individuals with signs and symptoms as well as to the health system. Postmenopausal osteoporosis has been associated with oxidative stress, emphasizing the importance of an efficient defense system to maintain bone health. Lycopene is a carotenoid with antioxidant properties that may stimulate osteoblastogenesis and inhibit osteoclastogenesis. The purpose of this investigation was to analyze the influence of lycopene in the bone neoformation of calvaria defects in ovariectomized rats utilizing the concentration of 45 mg/kg. Wistar Hannover female rats were divided into ovariectomized and sham groups. The ovariectomized animals received 45 mg/kg lycopene (OvxL) or water (Ovx) by daily gavage the day after ovariectomy/sham surgery for 16 weeks. Twelve weeks after ovariectomy, there were performed 5-mm calvaria defects followed by euthanasia after 4 weeks. Samples of bone tissue were collected to perform morphological and morphometrical analysis of the neoformed bone area, and percentage with Software Image J. Morphological evaluation showed mature bone with more osteocytes in the group OVxL when compared to the other groups. The morphometrical analysis demonstrated a significant increase of bone neoformation in the group OvxL (p<0.05). The data obtained suggest that lycopene benefits bone repair in the absence of estrogenic hormones.","PeriodicalId":9211,"journal":{"name":"Brazilian dental journal","volume":"34 3","pages":"50-56"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10355266/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10202175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In vitro evaluation of membranes for regenerative procedures against oral bacteria. 用于口腔细菌再生程序的膜的体外评估。

Brazilian dental journal Pub Date : 2023-05-01 DOI: 10.1590/0103-6440202305060

Ana Clara Kuerten Gil, Maick Meneguzzo Prado, Laura Rhoden da Rocha, César Benfatti, Guenther Schuldt Filho, Josiane de Almeida

{"title":"In vitro evaluation of membranes for regenerative procedures against oral bacteria.","authors":"Ana Clara Kuerten Gil, Maick Meneguzzo Prado, Laura Rhoden da Rocha, César Benfatti, Guenther Schuldt Filho, Josiane de Almeida","doi":"10.1590/0103-6440202305060","DOIUrl":"10.1590/0103-6440202305060","url":null,"abstract":"The current literature on guided bone regeneration (GBR) and guided tissue regeneration (GTR) membrane contamination reports that the physicochemical characteristics of these biomaterials might influence affinity to bacteria, which appears to be a major drawback for the clinical outcome of the regenerative procedures. Thus, this study aimed to evaluate, in vitro, a multispecies biofilm adherence and passage of bacteria through different types of commercially available membranes for GTR/GBR. Four types of membranes were tested (n=12): LC) Lumina Coat®; JS) Jason®; BG) Biogide®; and LP) Lumina PTFE®. Aluminum foil (AL) simulated an impermeable barrier and was used as the control. The membranes were adapted to specific apparatus and challenged with a mixed bacterial culture composed of A. actinomycetemcomitans b, S. mutans, S. mitis, and A. israelii. After 2 h or 7 days, bacterial adhesion and passage of bacteria were evaluated through CFU counting, which was analyzed by two-way ANOVA e post hoc Tukey, at a 5% significance level. Representative areas of two membranes of each group were analyzed through scanning electron microscopy (SEM) to assess the morphology and organization of the biofilm over the membrane fibers. LC and LP presented similar values of adhered bacterial cells (p > 0.05), significantly inferior when compared to the other groups, in both time points (p < 0.05). All the tested groups were permeable to bacterial cells, with no significant difference between the trial period of 2 h and 7 days (p > 0.05). SEM analyses demonstrated that adhered bacteria number increased throughout the time points (2 h < 7 days). Commercially available biological membranes demonstrated intense bacterial adherence and passage of bacteria, which increased throughout the trial period.","PeriodicalId":9211,"journal":{"name":"Brazilian dental journal","volume":"34 3","pages":"57-65"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10355258/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9898866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A modified tunnel technique to treat multiple gingival recessions: Case Series. 一种改良隧道技术治疗多发性牙龈退缩：病例系列。

Brazilian dental journal Pub Date : 2023-05-01 DOI: 10.1590/0103-6440202305502

Dennis Malta Guimarães, Patrícia Freitas de Andrade, Julio Rebollal, André Martins das Neves, José Mauro Granjeiro

{"title":"A modified tunnel technique to treat multiple gingival recessions: Case Series.","authors":"Dennis Malta Guimarães, Patrícia Freitas de Andrade, Julio Rebollal, André Martins das Neves, José Mauro Granjeiro","doi":"10.1590/0103-6440202305502","DOIUrl":"10.1590/0103-6440202305502","url":null,"abstract":"This case series reports a modified tunnel technique with connective tissue graft for the root coverage of multiple Miller Class I, II, and III gingival recessions. The modified approach presents an innovative suture technique to improve the stability and position of the graft. Ten patients with multiple gingival recessions (n=85 teeth) received surgical root coverage treatment. The gingival recession height and width were measured and presented as median, minimum, and maximum values. The percentage of the root coverage after at least 12 months expressed the treatment effectiveness. The Shapiro-Wilk test evaluated the normality; pared Wilcoxon test determined the exact P-value for the differences in the height of the gingival recession before and after surgical treatment (α = 0.05). An average of 97.9% (± 5.6%, p < 0.0001) root coverage after treatment occurred, and 73 out of 85 recessions presented complete root coverage after 12 months. Treatment of Miller class I and II gingival recessions resulted in root coverage higher than 99 and class III higher than 95% (p < 0.0001). The presented case series report the efficacy of a modified surgical technique promoting more than 95% of root coverage after 12 months in multiple Miller Class I, II, and III gingival recessions. Well-designed blind randomized controlled trials are needed to validate the proposed technique.","PeriodicalId":9211,"journal":{"name":"Brazilian dental journal","volume":"34 3","pages":"136-145"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10355267/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9844788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevalence of lectures about dental esthetics and female speakers in three Brazilian conferences. 三次巴西会议中关于牙齿美学的讲座和女性演讲者的普及率。

Brazilian dental journal Pub Date : 2023-05-01 DOI: 10.1590/0103-6440202305349

Karen Larissa Oliveira Conceição, Karla Danielly Alves Soares, Rafaella Mariana de Bragança, Marcos Britto Correa, Rafael Ratto Moraes, André Luis Faria-E-Silva

{"title":"Prevalence of lectures about dental esthetics and female speakers in three Brazilian conferences.","authors":"Karen Larissa Oliveira Conceição, Karla Danielly Alves Soares, Rafaella Mariana de Bragança, Marcos Britto Correa, Rafael Ratto Moraes, André Luis Faria-E-Silva","doi":"10.1590/0103-6440202305349","DOIUrl":"10.1590/0103-6440202305349","url":null,"abstract":"This study analyzed the prevalence of lectures involving esthetics in the scientific program of Brazilian dental conferences and the gender distribution of speakers. All lectures presented in three dental conferences (Bahia, São Paulo, and Goiás states) held from 2016 to 2020 were evaluated. Three investigators individually divided the lectures according to the specialties recognized by the Brazilian Federal Council of Dentistry (FCD) based on their titles. The lectures were also classified as involving or not esthetics, and the speaker`s gender was recorded. Descriptive statistical analyses were performed, and Chi-square tests assessed possible associations between factors. The words most cited in the titles of the lectures were \"esthetic\" (13.6%), \"dentistry\" (9.9%), and \"treatment\" (8.1%). Oral diseases were barely mentioned in the titles (up to 1.3%). The highest number of lectures was observed for the specialty of Restorative Dentistry (22.3%), followed by Prosthodontics (18.5%). Approximately one-third of lectures involved some aesthetic aspect, but this percentage ranged from 71.9 to 78.6% for the two specialties with more lectures. Regarding the speaker`s gender, the inequity was higher for lectures involving esthetics (81.6% of males) than for topics unrelated to esthetics (66.7%). More male speakers than females were observed for all specialties. The highest gender gap was observed for Pediatric Dentistry with 62.4% male speakers, although only 10.6% of FCD registered specialists were men. In conclusion, the Brazilian dental conferences analyzed seemed to favor offering lectures dealing with esthetic topics and male speakers.","PeriodicalId":9211,"journal":{"name":"Brazilian dental journal","volume":"34 3","pages":"101-110"},"PeriodicalIF":0.0,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10355261/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9844024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0