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1.
Aust Endod J ; 49(3): 623-630, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37667824

RESUMO

The aim of the study was to evaluate the impact of kinematics and irrigation protocols on the extrusion of apical debris during removal of different obturation techniques. A total of 144 single-rooted teeth were instrumented and obturated with Thermafil+AH Plus, Thermafil+AH Plus Bioceramic and single gutta-percha cone+AH Plus Bioceramic. Samples were divided according to the retreatment kinematics: continuous rotation or Jeni motion. Each sub-group was subjected to conventional irrigation or irrigation activated by EDDY. Extruded debris was collected in Eppendorf tubes, weighted and retreatment time was digitally recorded. Data were analysed with two-way ANOVA (p < 0.05). Debris extrusion was not significantly different between all groups. EDDY activation system and CanalPro Jeni required significantly longer time compared with other groups to remove Thermafil+AH Plus and single cone+AH Plus Bioceramic. Within current limitations, obturation technique, irrigation protocol and kinematics tested had no influence on apical extrusion debris, while they significantly impacted the retreatment time.


Assuntos
Guta-Percha , Materiais Restauradores do Canal Radicular , Preparo de Canal Radicular/métodos , Obturação do Canal Radicular/métodos , Fenômenos Biomecânicos , Cavidade Pulpar , Retratamento
2.
J Periodontol ; 93(3): 354-363, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34564843

RESUMO

BACKGROUND: Very few studies have investigated the effect of patient and site factors on periodontal progression and long-term tooth loss in populations with minimal dental care. The aim of this retrospective study was to assess tooth loss and radiographic bone loss over at least 5 years in patients attending a national-health service primary care practice in Sicily and undergoing no regular care. METHODS: Records of two hundred consecutive patients with at least 5 years follow-up were screened and demographic, clinical and radiographic data were retrieved. Analyses of associations between patient and site factors and tooth loss were performed. RESULTS: After excluding not suitable patients, a total of 159 patient records with clinical and radiographic data with average 8.6 years follow-up were included. One hundred of these patients had no professional mechanical plaque removal (PMPR) carried out throughout the study follow-up. Nearly 65% of patients lost at least 1 tooth during the follow-up period, with a total of 400 extracted teeth (for periodontal and non-periodontal reasons). The annual tooth loss rate was slightly higher for "no PMPR" (untreated) patients (0.30 teeth/patient/year) compared with patients who had PMPR (0.27 teeth/patient/year). On a patient-level, only reduced frequency of daily tooth brushing was associated with tooth loss at logistic regression, whereas staging, grading and diagnosis of caries were associated with rates of tooth loss/year. At multilevel analysis including patient- and tooth-factors, age, diagnosis of caries and endodontic disease and percentage of bone loss at baseline were associated with tooth loss. CONCLUSION: This study confirms the importance of tooth brushing, initial bone loss, caries and endodontic disease in predicting tooth survival in a primary care setting.


Assuntos
Cárie Dentária , Perda de Dente , Cárie Dentária/diagnóstico por imagem , Cárie Dentária/terapia , Humanos , Estudos Retrospectivos , Extração Dentária , Perda de Dente/diagnóstico por imagem , Escovação Dentária
3.
Clin Oral Investig ; 26(3): 2771-2781, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34826030

RESUMO

OBJECTIVES: To explore microbial communities associated with health and disease status around teeth and dental implants. MATERIALS AND METHODS: A total of 10 healthy, 24 periodontitis, and 24 peri-implant sites from 24 patients were sequenced by next-generation sequencing. Microbial DNA was extracted and 16S rRNA gene was amplified. Bioinformatic analyses were performed using quantitative insights into microbial ecology (QIIME), linear discriminant analysis effect size (LEfSE), and STAMP. RESULTS: Differences in microbial diversity across three types of sites were not statistically significant. Several genera and species were more prevalent in healthy compared with diseased sites, including Lautropia, Rothia and Capnocytophaga and Kingella. Among diseased sites, Peptostreptococcaceae, Dialister, Mongibacterium, Atopobium, and Filifactor were over-represented in peri-implantitis sites, while Bacteroidales was more abundant in periodontitis sites. CONCLUSIONS: Diseased periodontal and peri-implant sites and corresponding healthy sites have distinct microbiological profiles. These findings suggest that microbial analyses could identify biomarkers for periodontal health and disease and lead to the development of new strategies to improve periodontal health and treat peri-implant and periodontal diseases. CLINICAL RELEVANCE: The study contributes to improving our understanding of healthy, periodontally affected, and peri-implantitis sites which can improve our ability to diagnose, monitor, and manage these oral conditions.


Assuntos
Implantes Dentários , Microbiota , Peri-Implantite , Estudos Transversais , Implantes Dentários/microbiologia , Humanos , Microbiota/genética , Peri-Implantite/microbiologia , Projetos Piloto , RNA Ribossômico 16S/genética
4.
J Clin Periodontol ; 48(11): 1441-1448, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34472119

RESUMO

AIM: The aim of this study was to explore general dental practitioners' (GDPs) attitude to periodontal furcation involvement (FI). MATERIALS AND METHODS: An online survey focused on diagnosis and management of periodontal FI was circulated to GDPs in seven different countries. RESULTS: A total of 400 responses were collected. Nearly a fifth of participants reported rarely or never taking 6-point pocket charts; 65.8% of participants had access to a Nabers probe in their practice. When shown clinical pictures and radiographs of FI-involved molars, the majority of participants correctly diagnosed it. Although 47.1% of participants were very/extremely confident in detecting FI, only 8.9% felt very/extremely confident at treating it. Differences in responses were detected according to country and year of qualification, with a trend towards less interest in periodontal diagnosis and treatment in younger generations. Lack of knowledge of management/referral pathways (reported by 22.8%) and lack of correct equipment were considered the biggest barriers to FI management. Most participants (80.9%) were interested in learning more about FI, ideally face to face followed by online tutorials. CONCLUSIONS: Plans should be put in place to improve general dentists' knowledge and ability to manage FI, as this can have a significant impact on public health.


Assuntos
Odontólogos , Defeitos da Furca , Defeitos da Furca/diagnóstico por imagem , Defeitos da Furca/terapia , Humanos , Dente Molar , Papel Profissional , Encaminhamento e Consulta , Inquéritos e Questionários
5.
Clin Adv Periodontics ; 11(2): 116-123, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33301215

RESUMO

FOCUSED CLINICAL QUESTION: After a quick overview on the original principles of guided periodontal regeneration (GTR), the aim of this paper focuses on the advantages of minimally invasive surgical techniques for periodontal regeneration/reconstruction. The specific clinical question to answer is: Are there new clinical parameters useful to choose the best minimal invasive surgery approach for each periodontal defect? An update of the decision trees is to propose after highlighting some clinical parameters deemed relevant for the choice of the most suitable minimally invasive surgical approach and which therefore are considered by us having a place in the new decision trees. SUMMARY: Starting from the paper of Evian dated 1985 until that of Aslan in 2017, we have analyzed the minimal periodontal surgical techniques proposed for the periodontal regeneration. In addition to the parameters set in the various flowcharts, we have highlighted the following additional parameters: papilla height loss; supra bone component of the defect; Δ Bone Sounding; width of keratinized tissue. CONCLUSION: The decision-making chart improved with the new clinically relevant factors may serve as a useful guideline for dentists, but to definitively validate it, further studies need to be developed in the future. In order to clarify the proposed flow chart, the authors present two different clinical cases.


Assuntos
Regeneração Tecidual Guiada Periodontal , Procedimentos Cirúrgicos Minimamente Invasivos
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