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This short communication aimed to acquire and transmit information about inserting CAD/CAM technology in the dental school’s curriculum to better prepare dental students for new approaches. The CAD/CAM system implementation has occurred slowly in the dental curriculum at universities. In 2012, authors evaluated the use of CEREC, showing an educational tool impacting the cost-effectivity for patients. A similar result was found in 2013, with an appreciation of the marginal fit and esthetic obtained. In 2014, CAD/CAM was incorporated into the predoctoral curriculum at the Indiana University School of Dentistry, showing good or excellent overall learning. In 2017, a CAD/CAM system was implemented at the University of Illinois at Chicago College of Dentistry’s predoctoral implant program, which had an increased preference and proportion of implant restorations made digitally. In 2018, a German dental school used CAD/CAM in the curriculum of prosthetic education, obtaining a clear tendency for the use of this technology. In 2023, pre-doctoral dental students in the U.S.A. received a questionnaire that significantly improved their knowledge and attitude to using this technology; otherwise, student satisfaction was non-significant. In conclusion, integrating CAD/CAM technology into the curriculum has become an essential component of modern dental education.

Purpose: Within this context, this pilot study aimed to evaluate the healing dynamics process of the hard palate after free gingival graft harvesting in the short term (3 months), utilizing digital imaging technology and tridimensional analysis software. Furthermore, assessing the results found to verify the existence of a relationship between gender or age with tissue loss. Materials and Methods: For connective-tissue harvesting, fifteen patients with gingival recessions type (RT) 1 and RT2 were selected. On the surgery day (before the procedure) and after three months, palatal impressions were taken in all patients, and cast models were done for posterior model scanning. The following variables were analyzed: mean thickness alterations (x¯ TA), maximum thickness loss (MTL), mean maximum thickness loss (x¯ MTL), and volume alterations (VA). A descriptive and bivariate analysis of the data was done. The data were submitted for statistical evaluation and were significant if p < 0.05. Results: Fifteen patients were analyzed, 11 females (73.3%) and four males (26.7%). The patients’ average age was 28 ± 8.52 years (ranging between 16 and 48 years old). The palatal wound region’s mean thickness and volume changes were −0.26 mm (±0.31) and 46.99 mm3 (±47.47 mm3) at three months. There was no statistically significant result correlating age/gender with any variable evaluated. Conclusions: Connective tissue graft harvesting promoted changes with a standard volume and thickness loss of palatal soft tissue. A 3D digital evaluation was a non-invasive method with a reproducible technique for measuring thickness or volume after connective tissue is collected. There was no relationship between age/gender and any variables analyzed.

Predictable outcomes intended by the application of PRF (platelet-rich fibrin) derivative membranes have created a lack of consideration for their consistency and functional integrity. This study aimed to compare the mechanical properties through tensile strength and analyze the structural organization among the membranes produced by L-PRF (leukocyte platelet-rich fibrin), A-PRF (advanced platelet-rich fibrin), and A-PRF+ (advanced platelet-rich fibrin plus) (original protocols) that varied in centrifugation speed and time. L-PRF (n = 12), A-PRF (n = 19), and A-PRF+ (n = 13) membranes were submitted to a traction test, evaluating the maximum and average traction. For maximum traction, 0.0020, 0.0022, and 0.0010 N·mm−2 were obtained for A-PRF, A-PRF+, and L-PRF, respectively; regarding the average resistance to traction, 0.0012, 0.0015, and 0.006 N·mm−2 were obtained, respectively (A-PRF+ > A-PRF > L-PRF). For all groups studied, significant results were found. In the surface morphology observations through SEM, the L-PRF matrix showed a highly compact surface with thick fibers present within interfibrous areas with the apparent destruction of red blood cells and leukocytes. The A-PRF protocol showed a dense matrix composed of thin and elongated fibers that seemed to follow a preferential and orientated direction in which the platelets were well-adhered. Porosity was also evident with a large diameter of the interfibrous spaces whereas A-PRF+ was the most porous platelet concentrate with the greatest fiber abundance and cell preservation. Thus, this study concluded that A-PRF+ produced membranes with significant and higher maximum traction results, indicating a better viscoelastic strength when stretched by two opposing forces.

Objectives: This study aimed to compare clinical results between titanium (Ti), zirconia (Zr), or titanium–zirconium (TZ) dental implants and to analyze survival rate (SR), bleeding on probing (BoP), marginal bone loss (MBL), and/or probing depth (PD). Data source: Manual and electronic searches were conducted (PubMed and Web of Science) to identify randomized controlled trials that compared the outcomes of at least two implant types (control and test group) within the same study. The focused question was determined according to the PICOT strategy. Seven studies were included out of 202 research studies initially found. The follow-up periods ranged from 12 to 80 months, and the mean age was from 43.3 to 65.8 years old. The SR for Ti, TZ, and Zr implants ranged from 92.6% to 100%, 95.8% to 100%, and 87.5% to 91.25%, respectively; MBL for Ti, TZ, and Zr implants varied from −1.17 mm to −0.125 mm for Ti, −0.6 mm to −0.32 mm for TZ, and −0.25 mm to −1.38 mm for Zr. Studies showed a low incidence of mucositis and peri-implantitis; however, BoP for Zr was 16.43%, Ti ranged between 10% and 20%, and TZ from 10% to 13.8%. PD for Ti ranged from 1.6 mm to 3.05 mm, TZ was 3.12 mm (only one study), and Zr ranged from 2.21 mm to 2.6 mm. Conclusion: All three types of implants showed similar tissue behavior. However, the TZ group had better results when compared with Ti and Zr for SR, MBL, and BoP, except for PD. Furthermore, the worst SR was found in the Zr implants group.

The objective of this study was to histologically and immunologically analyze the level of bone substitution and the presence of new blood vessels in a nanobiomaterial composed of hydroxyapatite and BTCP in a maxillary sinus lift surgery. A case of a maxillary sinus lift was investigated. The patient had a 1.0 mm bone remnant on the left side and 2 grams of nanobiomaterial (80% hydroxyapatite and 20% β-tricalcium phosphate) were grafted into the pneumatized sinus. After 6 months, during dental implant placement surgery, grafted bone samples were collected with 4 mm trephines. These samples were sent to the laboratory for analysis where they were stained with masson'strichrome and immuno stained with osteonectin and osteopontin. After 6 months of bone regeneration a result of 14 mm of bone gain was reached, the analyzes in masson's trichrome showed an excellent gain of newly formed bone, in addition to a very high percentage of blood vessels. In the immunostaining, a very large number of osteoblasts and osteoclasts was observed, signaling an excellent osteoconduction and osteoinduction of the studied nanobiomaterial. The maxillary sinus lift surgery with nanobiomaterial provided a very favorable bone height and thickness gain, as well as the high vascularity and cellularity, which enabled the patient's oral rehabilitation with osseointegrated dental implants and permanent ceramic prostheses.

Introdução: O uso do laser de díodo de alta intensidade em cirurgias periodontais proporciona maior precisão do corte cirúrgico e permite pouca absorção de luz pelos tecidos duros quando se utilizam parâmetros adequados, não gerando assim qualquer dano térmico. Outras vantagens seriam a mais rápida coagulação tecidual, a redução do tempo cirúrgico e a diminuição do risco de infeções pós?operatórias. Outro equipamento com crescente uso é o piezoelétrico, o qual também está indicado em cirurgias orais, a proporcionar também osteotomias mais precisas, limpas e com menor trauma para os tecidos moles. Portanto, o objetivo deste relato foi mostrar a utilização de tecnologias em procedimento estético periodontal. Descrição do caso clínico: Paciente do sexo feminino, 25 anos, saudável, com tratamento ortodôntico prévio, com queixa principal de grande exposição gengival ao sorrir. Planeou?se um alongamento coronário com uso do laser de díodo, em região estética superior (1.4 – 2.4). Após uso do laser para corte gengival, foi feito retalho de espessura total para visualização do osso de sustentação e posterior osteotomia com piezoelétrico, a seguir mensurações e proporções estéticas. Posteriormente, retalho foi reposicionado e suturado. No pós?operatório de 7 dias e 14 dias, pode? se confirmar a excelente recuperação do tecido local e da paciente. Discussão e conclusões: Existem evidências de que a cirurgia em tecidos moles com laser a díodo, e a cirurgia de tecidos duros com aparelho piezoelétrico, proporcionam um bom prognóstico e melhorando assim o pós? cirúrgico do paciente. O laser de díodo permite ter um campo cirúrgico limpo, sem hemorragia, diminuindo o risco de inflamação e infeção pós? cirúrgica quando comparado a sistema tradicional de cirurgias. A osteotomia com piezoeléctrico permite um corte preciso e menos traumático, proporcionando um menor perfil inflamatório a nível ósseo. As vantagens para o paciente são: diminuição da dor e do edema. Enquanto as vantagens para o profissional são: maior sensibilidade tátil e uma melhor visibilidade do campo operatório. Também proporciona proteção dos tecidos moles e das estruturas nobres adjacentes, incluindo um maior controlo da assepsia. A utilização destas tecnologias em cirurgia periodontal mostrou maior exequibilidade e visibilidade, campo cirúrgico mais limpo e menor hemorragia e edema. Inclusive, estas técnicas permitiram reparo ósseo e gengival mais favorável.

Objetivos: Este estudo teve por objectivo fazer comparação directa da resistência à tração entre membranas produzidas com diferentes protocolos de centrifugação, Leucocyte?Platelet Rich Fibrin (L? PRF) versus advanced? Platelet Rich Fibrin (a?PRF). Materiais e métodos: Após a colheita de sangue de uma pessoa saudável e sem histórico de toma de anticoagulantes ou outro medicamento, sob controlo alimentar, procedeu? se à confeção de membranas segundo os protocolos de L? PRF e a? PRF previamente descritos na literatura. De seguida, as membranas, n=26 (13 para cada protocolo), foram submetidas a um teste mecânico de tração, para os quais foram obtidos valores de tração máxima e de tração média. A análise estatística dos dados foi feita com o teste t?Student não pareado. Resultados: Relativamente à tração média, o protocolo a? PRF e L?PRF, respetivamente, foram de 0.0288 N.mm? 2 e 0.0192 N.mm? 2 (p

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