PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Radiography, Bitewing”

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 739 records · Page 41Linked to original sources
PubMed1986

The use of panoramic radiography in the evaluation of asymptomatic adult dental patients.

This article examines the efficacy of panoramic radiography alone and in combination with intraoral films as part of the "full-mouth" radiographic evaluation of asymptomatic dental patients in the diagnosis of dental caries and periodontal disease. Three full-mouth radiographic surveys--the panoramic alone, the panoramic plus posterior bitewing, and the periapical plus posterior bitewing--are compared. Two forms of measurement--comparative and incremental--were used to identify the radiographic survey with the highest single diagnostic yield when measured against the consensus standard. The findings show that the panoramic radiograph alone exhibits very low sensitivities to dental caries, ranging from 0.6% on anterior teeth to 25.6% on premolars. Even when posterior bitewing radiographs are added to the panoramic films, the sensitivities are significantly below those of the full-mouth periapical and bitewing survey. In contrast, the sensitivities of all three radiographic surveys in the diagnosis of periodontal disease are quite high, ranging from 87% to 96%, so that differences are not clinically significant. However, specificities tended to be low for periodontal disease and high for caries. Thus, for dental caries and (to a lesser extent) periodontal disease, the panoramic radiograph was inferior to the full-mouth intraoral series in its ability to correctly detect evidence of the disease.

Adult↗
PubMed1986

A study of selection criteria for intraoral dental radiography.

This study was undertaken to determine whether adequate diagnostic information could be obtained from a thorough clinical examination supplemented with a limited number of intraoral radiographs, the exact number of films determined in each case by applying a set of historical and/or clinical selection criteria. The 100 patients in this study required an average of 8.2 periapical radiographs (range, 0 to 18), in addition to posterior bitewing films to complete the diagnostic process. Later evaluation of complete-mouth surveys on these patients revealed that no cases of periodontitis, no periapical lesions, and no impacted teeth were overlooked when selection criteria were used. Forty-two unsuspected abnormalities were found, but only three of these required treatment-a root tip close to the surface and enlarged follicular spaces distal to two clinically erupted third molars.

Adolescent↗
PubMed1982

Quality of intraoral radiographs from 9-11-year-old Norwegian children.

The quality of intraoral radiographic series consisting of 10 periapical and two posterior bitewing radiographs from 200 children were examined by six dentists. The radiographs were evaluated both without and, subsequently, with specified criteria. In the absence of specified criteria, no general agreement between the examiners was found when they were asked to state the quality of a radiograph. Using specified criteria much better agreement was obtained. The radiographic images of the maxillary and mandibular incisors were generally found acceptable using the criteria set up for the present study while the images of the canines, premolars and especially molars frequently were found unacceptable. Only a small proportion of the approximal surfaces on the posterior bitewings were found to be unreadable for caries of dentin while approximately 20% of the approximal surfaces were unreadable for caries of enamel. Approximately half the bitewing films had been placed wrongly in the mouth. Considering the available knowledge about prevalence of disease and anomalies in children of this age, quality of the radiographs, examiner variability and a possible harmful effect of radiography, screening with full-mouth intraoral radiographs in the actual age group does not seem to be justified in the population studied.

Child↗
PubMed1985

Radiographic image storage via laser optical disk technology. A preliminary study.

Radiographic images were stored on a laser optical disk and later displayed on a monitor in an attempt to assess the usefulness of this technology for archiving of radiographic images. The results of this study indicated that laser disk archiving of dental panoramic and bitewing radiographs is feasible and that this technology is also adequate for archiving certain medical and maxillofacial images.

Computers↗
PubMed1988

Radiographic examination of comprehensive care patients in U.S. and Canadian dental schools.

Between 1977 and 1987, there was a shift in the radiographic prescribing practices for the dentulous adult comprehensive care patient in U.S. and Canadian dental schools. The number of schools ordering films on the basis of selection criteria or patient need increased from 1 to 13, while the number of schools ordering both an intraoral full-mouth series and a panoramic radiograph decreased from 30 to 13. However, in 1987, there were still 56 schools that expressed a preference for a particular standard examination. In the current study, the panoramic radiograph (with and without supplemental periapical views) was the most frequently stated preferred examination for the edentulous adult patient, and the panoramic and bitewing examination was the most frequently stated preferred examination for the child patient.

Adult↗
PubMed2002

Identifying skeletal remains found in a sewer.

BACKGROUND: Dental identification of skeletal remains frequently is accomplished via comparison of antemortem and postmortem radiographs. When dental radiographs are unavailable or of poor quality, the dentist may have to rely on other evidence such as study models, head and neck radiographs and anthropological examination results. The authors present a case report in which all of these modalities were used to identify skeletal remains. CASE DESCRIPTION: The skeletal remains of a female adolescent found in a retention sewer were identified as those of a 14-year-old girl who had disappeared from her home one year earlier. The identification was based on anthropological findings, a comparison of antemortem and postmortem study models, and a comparison of antemortem and postmortem radiographs. CLINICAL IMPLICATIONS; Dentists who are called on by local authorities to assist with the identification of skeletal remains must be familiar with ways in which dental comparisons can be made when periapical radiographs, bitewing radiographs or both are unavailable.

Adolescent↗
PubMed1984

Intraoral or panoramic radiography?

When panoramic radiographs are used to replace full-mouth radiographic series for the pediatric patient, certain advantages and disadvantages of this technique should be understood. The panoramic exposure offers ease of operation, shorter working time, and greater coverage than does the intraoral full-mouth series. However, certain shortcomings are noted. Rotations of maxillary premolars appear where there are none, and confusion exists in the anterior region about rotated teeth. Supernumerary teeth are frequently missed on the panoramic film in the anterior region. Because of this it is wise to supplement the panoramic image with anterior periapical films. Posterior bitewing films are a necessary supplement to the panoramic examination and with them interproximal caries, periapical lesions, and other details not visualized on the panoramic film are noted. It is imperative that the dentist understand confusing panoramic images that result from motion, superimposed structures, and apparent rotations, so that missed diagnoses do not occur.

Child↗
PubMed1999

Optimum dental radiography in bone marrow transplant patients.

OBJECTIVE: The purpose of this study was to establish an optimum radiographic examination regimen for patients undergoing bone marrow transplantation. Two radiographic examinations were compared: the panoramic radiograph and the full mouth series of radiographs. STUDY DESIGN: A prospective analysis of 65 consecutive patients undergoing bone marrow transplantation was undertaken. All patients were examined through use of both panoramic and full mouth series intraoral radiographs, including bitewings. Significant findings were recorded and compared by means of paired t test analysis for parametric data, such as caries, periapical inflammation and subgingival calculus, and by means of McNemar's test for nonparametric data, such as the presence or absence of severe periodontal disease. RESULTS: Acquired findings, such as caries, periodontal disease, and clinically significant faulty restorations, were detected more frequently from the full mouth series (P < .05). There was no significant difference in the detection of periapical pathosis. In 8 of 65 patients, clinically significant information, such as evidence of impacted wisdom teeth, neoplasms, and multiple myeloma, was better detected from the panoramic radiographs. CONCLUSIONS: The results suggest a combination of both modalities as the optimum means of radiologic survey in this "high-risk" patient population.

Adolescent↗
PubMed2000

Infection control procedures used in conjunction with computed dental radiography.

Infection control guidelines for dental radiography have been modified since 1986, when the American Dental Association and the Centers for Disease Control and Prevention supported the concept of "universal blood and body fluid precautions." With the introduction of computed digital radiography, hardware manufacturers recommend that alternative infection control techniques are necessary to prevent potential damage to the digital x-ray sensors placed inside the patient's mouth. Thirty first-year dental hygiene students were asked to insert and remove a Schick CDR number 2 size intraoral digital x-ray sensor into modified Rinn XCP bitewing bite blocks and a modified Rinn Snap-a-ray five times with each of the recommended infection control covers. Reduced rates of cross contamination are possible if the plastic barrier envelope has an additional latex finger cot stretched over it and the x-ray sensor. Sole usage of a latex finger cot will result in a reduced incidence of contamination, but still not to acceptable levels. However, a plastic barrier envelope placed over the x-ray sensor and over the modified XCP bite block together or a covered sensor in a Snap-a-ray under normal conditions does not result in a perforation and is least likely to result in cross contamination.

Humans↗
PubMed1983

Evaluation of the reproducibility of two bitewing techniques by means of a microdensitometric recording method.

A new, simple, metal bitewing holder with a radiation dose-reducing collimator using principles suggested by Eggen is presented and recommended. The reproducibility of the bitewing holder technique was compared with that of the conventional bitewing loop technique. The material consisted of twenty seven sets (fifty four pairs) of radiographs. A microdensitometric method was developed and used to assess the reproducibility of the radiographs, and 108 pairs of microdensitometric tracings were produced to evaluate the two techniques. The results showed that the metal bitewing holder was significantly superior to the bitewing loop for obtaining radiographs with high reproducibility. The suitability of the microdensitometric method is discussed.

Densitometry↗