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At least 1,801 records · Page 100Linked to original sources
PubMed1975

[Mandibular movements and joint function].

In five test persons the exact joint movements of the lower jaw in the area of the lateral teeth were tested with regard to precision of the movements and technical possiblities of balancing articulation. The result of these measurements show that there is extreme precision of the joint movements in a non-loaded lower jaw. With a uniformly bended compensation curve the joint movements can be compensated in sagittal direction only, and not in transversal direction. On the basis of these findings a method for the direct formation of the sagittal compensation curve is discussed.

Dental Occlusion, Centric↗
PubMed2000

Surgical template for completely edentulous patients.

Implant angulation is of utmost importance for fabrication of esthetic, hygienic, and functional prostheses, even in the treatment of completely edentulous patients. Most mandibular surgical templates are not reliable because of a lack of stability resulting either from severe resorption of the mandible or from the interference of mucoperiosteal flaps elevated during surgery. This article describes a technique for fabrication and surgical application of a stable template for the completely edentulous mandible. By combining the mandibular template with a maxillary duplicate denture, the problem of lack of stability can be overcome. A consistently reliable reference for implant placement in the edentulous mandible, specifically in relation to implant angulation (trajectory), can be obtained.

Acrylic Resins↗
PubMed2000

Implant procedures 101.

Many practitioners have found implant procedures to be too difficult or too much trouble to perform. Now that restorative components for most implant systems allow for cemented restorations, implant procedures for most clinical situations can be completed in two or three one-hour appointments. This article will review an easy-to-follow restorative philosophy using single- and two-to-three-unit implant restorative procedures that are similar to conventional dental procedures.

Cementation↗
PubMedDate not supplied

Effect of pressurized atmosphere on void size and quantity in dental stone and fine-grained phosphate-bonded investment.

This study investigated the effect of pressurized atmosphere on the size and number of voids in dental stones and investments. Control specimens of casts and invested patterns were bench set. Experimental specimens of casts and invested patterns were allowed to set under pressure. The specimens were then sectioned and voids counted and measured to establish a mean. Increased atmospheric pressure reduced the size and number of voids. This method produces improved cast surfaces and fewer, smaller voids in investments. Technicians are continuously searching for ways to improve the quality of their products. One method is placing dental casts and dental investments under increased atmospheric pressure while setting. Several pressure vessels are available for this purpose.

Calcium Sulfate↗
PubMed1999

[A comparative study of the occlusal surface of the mandibular 1st and 2nd premolar in Ivory Coast].

The first mandibular premolars are usually described as teeth with disproportionate cusp. The vestibular's is bulkier and higher than the lingual one. This study confronts this description with the clinical realities observed in Ivory Coast by comparing first mandibular premolars with the seconds. It points out: a slight difference of volume between the first and second mandibular premolars a less important disproportion between the lingual and vestibular cusp of the first mandibular premolar which morphology tends towards the second's.

Bicuspid↗
PubMedDate not supplied

Important factors for accurate impressions.

A great preparation is only as good as the impression and die made of it. Attention to every detail is necessary for a successful clinical result. By observing the clinical results, each individual dentist's experience will show the observant operator which technique works best. By combining experience, attention to detail, and patience, it is possible to achieve great fitting, adjustment-free esthetic dentistry.

Astringents↗
PubMed1992

Dental stone and improved dental stone surface hardness: the effect of the addition of potassium salts.

Changes in dental stone and improved dental stone surface hardness observed when prepared with aqueous solutions of potassium salts (K2SO4, KCl, KF, KBr, KNO4, KMnO4, K2Cr2O7) in concentrations of 0.5-5.0% were investigated. Parallel studies were carried out on dental stone and improved dental stone prepared with distilled water and crystallised in contact with alginate impression material, previously immersed in the above solutions for 2 minutes. Vicker's hardness tests were performed 3 hours and 24 hours after the initial set. The surface hardness of dental stone and improved dental stone is increased significantly by either method. The most effective hardening solution is potassium sulphate in concentrations of 0.5-5.0%. The degree of increase in surface hardness is directly proportional to the concentration of the solutions and proportionately greater at a shorter time (3 hours after the initial set).

Analysis of Variance↗
PubMed1976

[The importance of individual mesio-distal crown diameters in occlusion].

The mesio-distal crown diameters of 50 former orthodontic patients without extractions and of 50 cases with extractions were measured. The differences of the sum of the crown diameters of the upper and lower dental bow are analysed. The results support the importance of the individual analysis of the situation of all the crown diameters with respect to diagnosis.

Cephalometry↗
PubMed2003

A predictable precision cast for multi-unit screw-retained implant prosthesis: rationale and technique.

The aim of this article is to describe a technique derived from the premachined cylinder luting technique with the goal to predictably fabricate a highly precise master cast. An impression can be taken directly at implant level or, with some technique modification, at the abutment level. Concurrently, multiple techniques can be employed to fabricate the final framework with the assurance that a framework that fits the cast will fit in the mouth. This predictability improves the workflow of the restoring dentist and laboratory technician since multiple framework try-ins and adjustments are eliminated.

Dental Implantation, Endosseous↗
PubMedDate not supplied

Pretreatment wax-ups and provisionals for restorative dentistry.

One of the most important factors in restorative success is the preparation of a case prior to treatment. Case planning, constructing the wax-up and provisional restorations, and understanding the potential problems with a case prior to beginning can only ensure a higher degree of success than would be achieved by not employing these basic restorative steps. Although it is not utilized generally, the wax-up can be of immense value to any restorative dentist for cases of all kinds, ranging from a single tooth to full-mouth reconstruction.

Composite Resins↗
PubMed2005

Tooth width and arch dimensions in normal and malocclusion samples: an odontometric study.

The purpose of this study was to establish tooth width and arch dimensions in normal and malocclusion samples and to compare tooth width and arch dimensions between males and females in normal and malocclusion samples. A total of 120 pairs of orthodontic study casts were included in the study. An electronic digital caliper was used for the measurements. Descriptive statistics and the t-test were used for the statistical analysis of the data. Tooth width and arch dimensions were established in normal and malocclusion in the present study. Significant differences were found in tooth width between normal and malocclusion samples. However, no significant difference was observed in arch dimensions. Furthermore, there was statistical significant difference in tooth width between males and females where the males showed higher mean values. The same was true when arch dimensions were compared. The results of the current investigation are of great value to the anthropologist as well as to the orthodontist in understanding dimensional arch criteria and orthodontic arch wire selection. Furthermore, it helps the prosthodontist in the selection of the correct shape and size of stock impression trays and of suitable molds of artificial teeth for fixed and removable prostheses.

Adolescent↗

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