PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Dental Cavity Preparation”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 19 recordsLinked to original sources
PubMed1977

Electronic ohmmeter. An electronic device for the determination of the root canal length.

The electronic ohmmeter was devised for the accurate determination of root canal length. Fifty-one maxillary anterior teeth of 43 patients and 25 posterior root canals from 10 patients were selected for the investigation. The presence of a lesion in periapical tissue, wide root apex, and exudates in the root canal contributed to inaccuracy in the determination of the root canal length. Correct length can be found if precautions are taken. The inaccurate results were corrected by repeating the procedures and taking precautions during the estimation of root canal length. Measurement in the dry canal gave correct estimation of the root canal length. When distilled water or normal saline was used as conducting medium in root canals, accuracy was not as good as in dry canals. The electronic ohmmeter is a useful and economical device and an endodontic aid for determination of the root canal length.

Adolescent↗
PubMed1979

An analysis of the sensitivity of non-rereduced PRS medium in endodontic therapy.

A total of 244 paired samples were obtained from sixty-one root canal systems at four specific stages of endodontic treatment. Half the samples were placed in a commonly used endodontic medium and incubated aerobically. The remaining samples were placed in PRS medium and incubated in an anaerobic environment. The rereduction procedure, used to remove oxygen entering the PRS medium at the time of insertion of the sample, was not employed. A statistical analysis of the results indicates that the non-rereduced PRS medium is not as sensitive as rereduced PRS and offers no significant advantages over trypticase soy broth with 0.1 percent agar.

Aerobiosis↗
PubMed1979

The anatomy of the maxillary molar furcal plane crown preparation.

The location and condition of the pulpal tissues under remaining dentin must be considered when a crown is used for restoration of a maxillary molar prepared to the furcations. This problem is examined by identification of basic landmarks. The study also discusses the furcal plane and the root trunk and relates the discussion to a three-part dissection of a crown preparation of a maxillary molar.

Crowns↗