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Biomedical subjects

J Salsench

Publications and source records attributed to J Salsench.

10 recordsLinked to original sources
PubMed2002

Growth of bioactive surfaces on dental implants.

Some metallic materials, such as pure titanium, Ti-6Al-4V, are used for dental and orthopedic implants under load-bearing conditions. However, they do not form a chemical bond with bone, which would achieve a good implant-bone fixation in service. In recent works, it has been demonstrated that an in vitro, chemically deposited, bone-like apatite layer with bone-bonding ability could be induced on a titanium surface. By reproducing that chemical procedure, in this work, a dense bone-like apatite layer was formed on the surface of the titanium in simulated body fluid. In addition, the different steps and kinetics of the layer-formation have been studied, because the observation of the samples in the wet state by means of the environmental scanning electron microscope has allowed the observation in situ of the apatite deposition process over a number of days. One of the most important features of the present study is that it can be carried out on a single titanium sample and the process is not interrupted at any stage. One of the main drawbacks of this chemical method is that the samples covered with apatite are susceptible to contamination by bacteria. The behavior of different types of antibiotics used to avoid this contamination has also been studied using the environmental scanning electron microscope. Finally, osteoblast cells have been cultured on the apatite-coated titanium samples to assess their biocompatibility.

Alloys↗
PubMed1996

Limitations in the use of attachments in a Mediterranean population.

It has been asserted that the average height of natural teeth in Mediterranean Latin populations is relatively short and that these teeth are of insufficient size to host standard attachments manufactured by different companies. The occlusogingival height of 159 potential abutment teeth from 50 Spanish patients was measured and compared to the sizes of intracoronal and extracoronal attachments available from one manufacturer. Twenty-one abutments (13% of the sample) were smaller than the smallest intracoronal attachment available. Eighty-seven percent of the abutments in the sample would have allowed the use of an attachment. However, only 11% of the sample would have allowed the use of a large intracoronal or medium extracoronal attachment, and none would have been able to host a large extracoronal attachment. In addition, 35% of the sample could only have accepted a small intracoronal attachment. In such cases, the capacity for retention would have to be carefully evaluated.

Adult↗
PubMed1995

Dual bite demonstrated by kinesiography: a case report.

A 60-year-old man sought treatment for extensive tooth wear resulting from bruxism. He had no signs of temporomandibular joint dysfunction. The kinesiographic study revealed that he had a dual bite, with two intercuspal positions, separated by 3 mm anteroposteriorly and by 7 mm laterally. The dentition was restored with metal-ceramic crowns to restore a normal occlusion. The kinesiographic follow-up studies revealed that, initially, it was difficult for the patient to adapt to a new occlusal design, but 6 years later, the dual bite had disappeared. However, the disoccluding angle had flattened where the second intercuspal position had previously existed, corresponding, clinically, to a change from canine guidance to anterior-canine guidance.

Bruxism↗
PubMed1991

Study of the mandibular movements during swallowing.

The authors recorded the mandibular movement produced during the swallowing of 150 ml of water with the aid of a straw between the lips using a kinesiograph in a random sample of 66 people between the ages of 24 and 35. In each recording 13 variables were measured, and a descriptive analysis of each one was carried out. The authors' findings support that there is no dental contact during liquid swallowing with the aid of a straw between the lips.

Adult↗
PubMed1990

Study of mandibular movements during speech.

We recorded the mandibular movements produced during the reading of a text, in Spanish, using a kinesiograph in a random sample of 71 people aged 24 to 35. In each recording we measured nine variables and did a descriptive analysis of each variable. Our findings support that the mandibular movement during speech has some definite characteristics. The most important fact is that it could be a high percentage of occlusal contacts at incisal level during speech. This has to be taken into account when exploring an occlusal trauma of unknown etiology.

Adult↗
PubMed1988

[Computerized clinical protocol for occlusion].

In making a protocol it is necessary that all members of the team who are going to collect information have the same unity of criterion about the different variables that compose it. The drawing up of this document is as much or more necessary than the protocol itself. In this work we all data collected in the protocol and we give the explanations of each concept.

Diagnosis, Computer-Assisted↗