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At least 1,225 records · Page 68Linked to original sources
PubMed1984

Endodontic treatment of a cementoblastoma.

The benign cementoblastoma (true cementoma, osteoblastoma, giant osteoid osteoma) appears to be a true neoplasm of functional cementoblasts which proliferate at the apex of teeth to form an expansile tumor. It remains intimately attached to the tooth roots and occasionally involves the root canals themselves. Although the pulpal tissue remains vital, treatment has historically consisted of extraction of the involved tooth along with extirpation of the tumor. This mode of therapy for the benign cementoblastoma should not be confused with the entity called periapical cemental dysplasia (that is cementoma, periapical osteofibroma or osteofibrosis, cementifying fibroma, localized fibro-osteoma, and periapical fibrous dysplasia). In this latter lesion the treatment consists of simply recognizing the condition and establishing a schedule for periodic evaluation of the patient. In the case presented here enucleation of the cementoblastoma and endodontic therapy were selected as treatment modalities, despite the presence of buccal and lingual expansion of the cortical plates. There has been no recurrence of this growth during the 4-year follow-up period.

Adult↗
PubMed1984

Use of xeroradiography for length determination in endodontics.

Files inserted and secured in forty-seven canals of maxillary and mandibular cadaver jaw sections were radiographed by conventional and xeroradiographic means, with the use of positioning devices and beam-guiding instruments. Measurements of the radiographically interpreted distance and the actual distance of files from the anatomic apex were made and compared. The data were analyzed by use of the Student's t test. There was no statistically significant difference between conventional and xeroradiographic methods. Xeroradiographs were subjectively judged better than conventional radiographs for maximum visualization of dental structures important to endodontics. Radiation levels needed for quality radiographs were found to be less with the xeroradiographic process.

Cadaver↗
PubMed1984

Variations in same-size endodontic files.

Variations in same-size endodontic files (K-type, style B, stainless steel) were detected with a three-dimensional gauge. The variation between same-size files was within 3 mm. in most instances; however, variations from the smallest file in one size group to the largest file in the next size group was 5 mm. or more in many instances. Overall, about 74 percent of the variations came from the file itself. Suggestions concerning the use of the files are presented.

Dental Instruments↗
PubMed1984

Vitality preservation of an anomalous maxillary central incisor after endodontic therapy.

Endodontic treatment of a case of fused immature central incisor with a supernumerary tooth with dens in dente is described. Although a chronic dentoalveolar abscess was diagnosed, vitality test signs were positive. Treatment consisted of pulpotomy with calcium hydroxide paste; after 2 1/2 months a permanent root canal filling was placed in the amputated part. Follow-up 2 years postoperatively indicated that the tooth has maintained its vitality. The periapical area is completely healed, and apical closure is evident.

Child↗
PubMed1984

The effect of tryptophan on postoperative endodontic pain.

Fifty consecutive patients requiring nonsurgical endodontic therapy were the subjects of this pain-control study. Twenty-five subjects received 3 gm of tryptophan in divided 0.5-gm doses over a 24-hour period, beginning before the start of treatment. The other twenty-five subjects received an identically appearing placebo on the same dosage schedule. Pain intensity was evaluated by the subjects on a scale of 0 to 10 (0 = no pain, 10 = severe pain) (1) prior to the start of treatment, (2) after 24 hours, and (3) 1 week later. Results showed that the most meaningful difference was found at 24 hours, when the tryptophan group was significantly better than the placebo group (F = 7.46, df = 1.96, p less than 0.01).

Adolescent↗
PubMed1985

Two dental x-ray films compared for rater preference using endodontic views.

Four groups of patients were selected during various phases of endodontic therapy to receive two comparable radiographic exposures. One exposure was made with Kodak Ultraspeed dental x-ray film and the second exposure was made with Kodak Ektaspeed dental x-ray film. The films were coded and mounted in a side-by-side format to be judged by thirty raters. A double-blind clinical protocol was followed. Ultraspeed film was judged superior to Ektaspeed film in terms of contrast, image quality and rater satisfaction.

Clinical Trials as Topic↗
PubMed1985

The median mandibular cyst and its endodontic significance.

The median mandibular cyst is a very rare cyst of debatable origin that occurs in the midline of the mandible. A review of the literature and an additional case are presented, with emphasis on diagnosis, treatment planning and the need for endodontic therapy in the area of the lesion.

Child↗
PubMed1986

The effects of cyclical axial motion on rotary endodontic instrument fatigue.

A potential problem with the use of rotary engine-driven files to flare canals is metal fatigue and subsequent breakage. This study analyzes the effects of cyclical axial motion on instrument failure by fatigue testing of endodontic files with and without cyclical axial motion. Eighteen new instruments, sizes 15 to 45, were mounted in a lathe and turned at 1650 rpm in the lubricated lumen of a curved Pyrex capillary tube until failure occurred. Nine instruments of each size were turned with cyclical axial motion and nine were turned without it. The results indicated that cyclical axial motion can significantly extend the life span of rotary engine files. Torsional forces were not considered in this study.

Equipment Failure↗
PubMed1986

Prednisone treatment for injury and compression of inferior alveolar nerve: report of a case of anesthesia following endodontic overfilling.

An injury of the inferior alveolar nerve is not an uncommon occurrence. We envisage the physiopathologic process of this involvement. One case of injury of the nerve by endodontic overfilling is presented and analyzed. Prednisone therapy appears to shorten the course of the disease, prevent the secondary fibrosis, and lessen the severity of sequelae.

Adult↗
PubMed1986

Intentional replantation of periodontally involved and endodontically mistreated tooth.

This article presents a case in which a tooth was intentionally replanted after it was endodontically mistreated; there was also a severe periodontal involvement. The unusually long period of time that the tooth survived might be attributed to a different approach to the replantation technique, such as occlusion adjustment prior to replantation, preoperative reduction of oral cavity bacteria and of the harmful aerosols commonly found in the dental operatory, placement of a noneugenol periodontal packing under the acrylic splint to prevent residual liquid monomer from seeping into the periodontal space, use of the patient's own blood and no other material to moisten the root while it was out of the socket, a short extraoral period, loose splinting, complete isolation of the operative site in the oral cavity, and completion of periodontal therapy before intentional replantation.

Adult↗
PubMed1987

An alternate endodontic approach to periapical pathosis.

In this article cases involving periapical radiolucencies, which were treated by orthograde amalgam root canal filling, are described. In the obturation phase, with a good condensation of amalgam, the lateral canals and the apical ramifications could be hermetically sealed. This obturation technique is applicable to both nonsurgical and surgical endodontics, saving time and effort.

Adult↗
PubMed1988

Complement activation as a possible in vitro indication of the inflammatory potential of endodontic materials.

Samples of four brands of gutta-percha and the nine ingredients that make up one brand were studied in vitro to observe their interaction with the serum complement system, thus allowing for assessment of their possible inflammatory potential. Crossed immunoelectrophoresis of the third complement component was used as an indicator of complement activation. The four different brands of gutta-percha showed comparable complement activation as determined by C3 conversion. When the ingredients of one brand of gutta-percha were examined for complement-activating properties, major activities were associated with gutta-percha compound, agerite stalite-antioxidant, and titanium oxide food grade. The significance of the possible inflammatory potential of gutta-percha and its ingredients, as it relates to endodontic therapy, is discussed.

Complement Activation↗
PubMed1988

A comparison between xeroradiography and conventional radiography in the diagnosis of endodontic lesions.

Detection of periapical bone pathosis is an important part of the diagnostic process in dentistry. Xeroradiographs and E-speed films were taken to evaluate and to compare the diagnostic value for the radiographic interpretation of periapical lesions. Thirty-four patients undergoing endodontic treatment were chosen. Simultaneous exposures of the radiographic film and the xeroradiographic plates were made. The samples were viewed and categorized by the examiners using the following scores: 0 = unacceptably poor, 1 = poor but diagnostic, 2 = adequate for diagnostic information, and 3 = optimal for diagnostic information. A paired sample t test was performed on the result of the evaluation by the two examiners, and both showed that there were no significant difference at p less than 0.05 between xeroradiography and conventional radiography. A two-sample t test was performed on the means of the two examiner's evaluation, and there was no significant difference at p less than 0.05 between the means.

Alveolar Process↗
PubMed1988

The laser apicoectomy: endodontic application of the CO2 laser for periapical surgery.

This article describes the development of a surgical technique employing a carbon dioxide laser for endodontic periapical procedures. The advantages of laser application for sterilization and removal of the infected root apex, as well as enhanced hemostasis, are cited. A case in which the "laser apicoectomy" technique was performed successfully for treatment of secondary apical abscess is presented.

Aged↗