Yerda Ozkan* and Recep Orbak
At the best determination and the administration treatment of a patient who has a periodontology and periodontal problem based upon an evidence, the required thing is to combine the findings of clinical examinations, if required test results will be taken and the scientific data concerning to the complaint of the patient at the dentistry literature with the complaint of the patient. The purpose of this compilation is to focus on the importance of the evidence- based treatment at the better determination of the treatment choices for the periodontology patients in the 21th century that the quality has raised at every field.
Fernandes Jr VVB*, Oliani MG, Nogueira Jr L, Silva JMF, and Araújo RM
In Dentistry, the mechanical tests aim to evaluate the properties and predict the behavior of dental materials, mimicking the real biological conditions and providing methods to be further used. Among the existing tests, tensile and shear tests are highlighted. However, since the 90’s, the so-called microtests appear as an alternative to those tests. The advantage of microtests is the reliability of the results. This paper aims to evaluate, through a literature review, the advantages of microtests over the conventional tests, as well as their indications for in vitro simulation of the bond strength between the dental surfaces.
Mari Takayama*, Yuji Sato, Noboru Kitagawa, Momoe Nakatsu, Kazuko Yamagaki, Kana Aoyagi, Takuya Kakuda, Kensuke Tsubakida, and Ishihara Masae
Aim: To study the effects of viscosity of oral moisturizers and residual ridge form on the retention force of maxillary complete dentures.
Methods: Thirty-five maxillary edentulous participants were recruited. Three types of oral moisturizers with different viscosities, artificial saliva, and denture adhesive were used. These were applied between the intaglio surface of the denture and basal seat mucosa. The central incisor was loaded 45° upward to the occlusal plane. The force needed to dislodge the denture was measured using a digital force gauge. Dental impressions of the polished surfaces and intaglio surfaces of the maxillary complete dentures were obtained. Then, duplicate dentures were cast using auto polymerizing acrylic resin. The buccolingual molar residual ridge form was assessed using the dental impressions. The duplicate denture was used to measure the positional relationship of the central incisor edge, anterior residual ridge crest, and posterior border of dentures. The effect of residual ridge form on retention force was analyzed.
Results: The gel-type oral moisturizer showed significantly greater retention than the other types (P < .05). The retention force and buccolingual molar residual ridge form were not correlated. As the ratio of the distance from the central incisor to the anterior residual ridge crest and the distance from the anterior residual ridge crest to the posterior denture border increased, retention force decreased (r = -0.352; P < .01).
Conclusion: The results indicate that the retention force of dentures is affected by oral moisturizer viscosity and the relative position of the anterior residual ridge crest.