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Assessment of maximum torque in implant-supported prostheses: a pilot laborator...

Background/Objectives: the precise application of torque during prosthetic screw tightening is essential to the long-term success and mechanical stability of implant-supported restorations. This study aimed to evaluate the influence of practitioner experience, glove material, screwdriver length, and hand moisture on the maximum torque value (MTV) generated during manual tightening. Methods: thirty participants,...

Análise antropométrica dos dentes ântero-superiores numa população de Viseu

Objetivos: Nos últimos anos, a Medicina Dentária tem dado uma atenção crescente aos componentes estéticos na sua prática e aplicação clínica, refletindo a valorização do sorriso na imagem pessoal. A Reabilitação Oral, que anteriormente se centrava sobretudo no restabelecimento da função mastigatória, passou também a englobar critérios estéticos rigorosos, visando atender às crescentes exigências e expectativas ...

A aplicação da inteligência artificial na segmentação do canal mandibular

Objetivos: A identificação precisa do canal mandibular é fundamental para o planeamento seguro de procedimentos cirúrgicos, de forma a evitar complicações neurovasculares. Este estudo teve como objetivo avaliar a precisão da segmentação tridimensional do canal mandibular realizada por um software de planeamento de implantes dotado de mecanismos de inteligência artificial. Materiais e métodos: Dez exames imagiol...

Sleep Quality among Medical Students of a Portuguese University

Introduction: Sleep is a complex physiological process shared by most living beings. Sleep disorders have been increasing exponentially. University students, particularly medical students, are especially vulnerable to this problem. However, the existing literature on the subject is scarce, especially in Portugal. The aim of this study is to assess the quality of sleep among medical students attending the Univer...

Sexual dimorphism in the mandible in a Portuguese population - predicting the g...

This study aimed to assess sex dimorphism in a collection of Portuguese mandibles through a digital metric methodology by using descriptive, inferential, and multivariate statistical analysis to identify which parameters are the most dimorphic and which are the best sex predictors. Thirty-three mandibles (14 females and 19 males) and personal belongings were photographically registered with code and sex. Data w...

Mechanical and surface properties of a 3D-printed dental resin reinforced with ...

Objectives: Commercial photocurable polymers used in dental additive manufacturing still have mechanical limitations. The incorporation of graphene may provide interesting advantages in this field. This study aimed to evaluate in vitro the effect of adding graphene nanoparticles to a 3D-printed polymethylmethacrylate dental resin in terms of surface roughness, flexural properties, and hardness. Methods: A 3D-pr...

Terras dos sonhos: onde o sucesso significa impacto

Comparação estrutural de dois sistemas dinâmicos submetidos a torque progressivo

Objetivos: O objetivo deste estudo consistiu em comparar o torque máximo entre dois sistemas dinâmicos (BHS30® e UBH30® de 4 estrias) e caracterizar as falhas dos seus componentes (chaves de aperto e/ou parafusos). Materiais e métodos: De forma a testar o comportamento mecânico de dois sistemas dinâmicos, foi realizado um estudo experimental laboratorial. Três amostras de cada sistema foram submetidas a um torq...

A new digital evaluation protocol applied in a retrospective analysis of period...

This research aimed to develop a new digital evaluation protocol to objectively quantify the volumetric changes of root coverage periodontal plastic surgery when combined with connective tissue graft. Consecutive patients with Cairo recession type 1 (RT1) or Cairo recession type 2 (RT2) were treated. Accurate study models obtained at baseline and follow-ups were optically scanned. Healing dynamics were measured...

Oral health behaviors, dental injuries and mouthguard awareness among a sample ...

Aim: To determine the oral health behaviors, the prevalence of dental injuries, the level of information about first-aid procedures in the case of dental avulsion and the mouthguard awareness in a sample of Portuguese athletes. Materials and Methods: Cross-sectional research among 1,048 athletes from the district of Viseu, Portugal. A self-administered questionnaire included demographic data and questions about...