The effectiveness of mouthwash protocols in preventing gamma irradiation therapy damage to the ultimate tensile strength (UTS) enamel and dentin is unknown. It was hypothesized that use chlorhexidine fluoride would maintain UTS dental structures. One hundred twenty teeth were divided into 2 groups: irradiated (subjected 60 Gy daily increments Gy) non-irradiated. They then subdivided used 3 times per day: 0.12% chlorhexidine, 0.05% sodium fluoride, control group (n = 10). specimens evaluated...

ABSTRACT Background/Objectives The use of different models for the fabrication custom‐fit mouthguards (MTGs) can affect their final thickness, adaptation, and shock‐absorption properties. This study aimed to evaluate shock absorption ethylene‐vinyl acetate (EVA) thermoplastic MTGs produced using conventional plaster or three‐dimensional (3D) printed models. Materials Methods A typical model with simulated soft gum tissue was used as reference produce following two protocols: plast‐MTG a...

O objetivo do estudo foi investigar a associação entre o bruxismo sono (BS) e ocorrência de sonolência diurna (SD). Foi realizada uma revisão sistemática seguindo Preferred Reporting Items for Systematic Reviews and Meta-analyses Protocol. protocolo registrado no International Prospective Register of (No CRD42021246944). Foram consultadas 8 bases dados eletrônicas, incluindo literatura cinzenta, busca manual. A População, Exposição, Comparação Desfecho utilizada para definir os critérios...

Bots, ou robôs digitais, são ferramentas úteis, cada vez mais presentes no ambiente acadêmico, auxiliando discentes e docentes com serviços esclarecimentos. No Centro de Ciências Agrárias da UFPB, em Areia, foi criado o “PET Descomplica”, uma parceria entre PET AgroBio Laboratório Entomologia, objetivo orientar sobre essenciais do campus. O chatbot superou as expectativas, oferecendo respostas rápidas recebendo média 4 (escala Likert 1-5). Avaliações indicaram 41% como ótimo, 33,33% bom,...

The study aimed to evaluate bone formation in surgical defects exposed ionizing radiation (IR) and compare two image segmentation methods: manual standardized delimitation of the region-of-interest (ROI). Bone were created tibias Wistar rats using a 2.3 mm trephine. After seven days, animals IR (30 Gy single dose). Two weeks later, euthanized, their scanned X-ray microtomography. ROI definition was performed by operator (a) interactive segmentation, where woven manually outlined within...

Aim: This study aimed to investigate the association of probable sleep bruxism with stress and quality life in children. Methods: A cross-sectional was conducted 117 children, aged 8–11 years, from public schools São Luís, Maranhão, Brazil, March December 2019. questionnaire demographic socioeconomic questions, aspects related bruxism, deleterious oral habits answered by parents. The children underwent clinical examination then Childhood Stress Scale Autoquestionnaire Qualité de Vie Enfant...

Correct oral physiotherapy using toothbrushes is essential for mechanically removing biofilms to reduce caries and periodontal disease, but ideal toothbrush parameters have not yet been fully defined. The aim of this study was evaluate the bristle splaying abrasive potential different on enamel resin composites after simulated brushing 30, 90, 180 days. Seventy bovine flat tooth crowns containing a circular cavity were restored composite (Forma, Ultradent) brushed days seven (n = 10):...

The aim of this study was to measure the mechanical and physical properties 18 commercially available dental flosses produced by global Brazilian manufacturing correlate these parameters with their cost. Eighteen were tested: Bianco Delicare, Colgate, Colgate Menta, Total, Dauf Oral Care, Hillo, Jade Pro, Johnson Essencial, Expansion Plus, Kess, Needs Nexter, Oral-B Essential Floss, Pro Saúde, Power Dent Classic Floss Extra Fino, Sanifill Clássico, Infinite. maximum load (N) elongation (mm)...

There is no consensus regarding the ability of coconut water and soy milk to maintain long-term cell viability. This study investigated pH-adjusted viability periodontal ligament cells over a short longer period compared these abilities with those other solutions.Dog premolar teeth were extracted, dried for 30 min, stored in following media 50 min or 24 h: long shelf-life whole (SWM), skim (SSM), Hank's Balanced Salt Solution (HBSS), (SM), (CW). The positive two negative control groups...

Abstract This study assessed the epidemiological characteristics and management of permanent teeth avulsion cases attended in a Brazilian dental trauma service from December 2005 to August 2016. A retrospective was conducted case records 93 patients involving 139 avulsed teeth. Data included sex, age, etiology, location accident, number position teeth, presence type associated traumatic lesions. Management addressed as: time elapsed until were retrieved accident’s location; teeth’s cleaning...

The aim of this study was to evaluate the effect porosity self-adhesive resin on stress distribution, post retention and failure mode fiber cemented human root dentin. Ten central upper incisors with circular canal were selected. They sectioned 15 mm endodontically filled. roots scanned using micro-CT after space preparation for filling remaining evaluation. Fiber posts cement (Rely X U200, 3M-ESPE). Two 1-mm-thick slices from cervical, medium apical thirds bubbles volume measurements...

Custom-fitted mouthguards are devices used to prevent dental injuries. The aim of this study was verify the influence antagonist contact on stresses and strains anterior teeth, shock absorption displacement EVA custom-fitted during a horizontal impact.Finite element models human maxillary central incisors with without mouthguard for different occlusion conditions (with contact) were created based tomography. A nonlinear dynamic impact analysis using single-step Houbolt method performed in...

Abstract Background/Aim Mouthguards (MTG) are used to prevent dental trauma. However, their protective effect on esthetic restorations and whether modified MTGs beneficial is uncertain. The aim of this study was evaluate the hard inserts air spaces in protecting direct resin composite veneers during impact. Materials Methods Twenty (1.0 mm) were prepared upper right central incisors printed maxilla models using polyether. evaluated four groups ( n = 5): Con‐MTG, conventional custom‐fit made...

Purpose: To test the hypothesis that type of cement used for fixation cast dowel-and-cores might influence fracture resistance, mode, and stress distribution single-rooted teeth restored with this class metallic dowels. Materials Methods: The coronal portion was removed from 40 bovine incisors, leaving a 15 mm root. After endodontic treatment standardized root canal relief at 10 mm, specimens were embedded in polystyrene resin, periodontal ligament simulated polyether impression material....

Abstract: The aim of this study was to evaluate the stability and osseointegration implant with different wettability using resonance frequency analysis (RFA) histomorphometric (bone contact, BIC; bone area fraction occupied, BAFO) after 2 4 weeks in rabbit tibiae. Thirty-two Morse taper implants (length 7 mm, diameter 3.5 mm) were divided according surface characteristics (n=8): Neo, sandblasted dual acid-etched; Aq, followed by acid-etched maintained an isotonic solution 0.9% sodium...

Abstract The aim of this study was to evaluated the root surfaces modifications resulted by application different chemicals agents, and their influence on fibrin network fibroblasts attachment. From 96 anterior mandibular human extracted incisor teeth, 192 dentin blocks buccal lingual surface were obtained randomly divided into 6 groups: Cont- control group, which received no treatment; Root scaling planing (Srp); Citric acid-Srp; EDTA-Srp; Tetracycline capsule-Srp; gel-Srp. After treatments...

Objective To evaluate the knowledge on bruxism among parents/caregivers of children treated at pediatric dentistry clinic. Methods A cross-sectional study was conducted with 103 that filled out a questionnaire based criteria American Association Sleep Medicine during dental care offered to their children. The addressed demographic issues child and caregiver, related child's sleep characteristics (duration, quality whether he/she sleeps alone) questions about (knowledge parafunctional habit,...