Showing papers in "Oral Surgery, Oral Medicine, Oral Pathology in 1971"

TL;DR: Extracted human single-rooted permanent teeth were classified according to degree of root curvature and an examination of cross sections revealed that straight canals were much more readily prepared round than were curved canals.

TL;DR: Forty-five plastic casts of the root canals of extracted human mandibular first molars were fabricated and studied, finding that when a root contained two rootCanals, they either remained two distinct canals with separate Apical foramina, united to form a common apical foramen, or communicated with each other partially or completely by transverse anastomoses.

TL;DR: In a study involving the mesial root canals of extracted human molars, sodium hypochlorite was found to be more effective than normal saline solution in dissolving pulp tissue and in cleaning the wider areas of the canals.

TL;DR: Although the biodegradable ceramic does stimulate bone formation and does disappear from the implanted site, it does not have the same initial strength as a metal or nondegradable ceramic implant, however, when completely replaced by bone, it should prove superior to the latter two.

TL;DR: It is only when gross destruction of tissue has led to a loss of structural integrity that the pulp may become an isobaric chamber in which all areas are in hydrostatic communication.

TL;DR: Considering the origin, histologic features, and location of these lesions, the term osseous choristoma is more appropriate than osteoma when describing intraoral submucosal lesions composed entirely of mature bone.

TL;DR: It is revealed that lip paresthesia is the most frequent complication following sagittal ramisection, and the technique is highly recommended for the correction of facial deformities.

TL;DR: A study of the tissue response to a new suture material indicates that polylactic acid sutures are degradable, that the degradation is gradual and is attended by a giant-cell reaction.

TL;DR: Although the lipoma is one of the most common of all neoplasms, it is rarely seen in the oral cavity, and it is seen most often in patients past the age of 40 years.

TL;DR: In thirty-two cases of histologically verified metastases to the jaws treated between 1944 and 1968, breast and lung carcinomas were the most common primary tumors, followed by thyroid carcinoma, carcinoma of the prostate, malignant melanoma, osteogenic sarcoma, retinoblastoma, hepatoma, renal-cell carcinomas, leiomyosarcomA, and an unknown adenocarcinoma.

TL;DR: Experimental defects were created in a dried human mandible to simulate periapical, periodontal, and central lesions in bone to study the limitations of the roentgenogram in detecting bony lesions.

TL;DR: Patients and society are not well served unless the dental profession considers the possibility of iatrogenic changes in all procedures and avoids the use of methods that will cause pathologic changes.

TL;DR: Histologic variations occur within these two types of neoplasm, including myxoid, collagenized, and plexiform varieties of neurofibroma, and classic, Verocay, pLexiform, and ancient forms of neurilemmoma.

TL;DR: The results of the experiment indicate that both PGA and PLA may be acceptable for use as a suture material.

TL;DR: Cultures have been used to detect heterozygotes of some of these conditions and to supply the material necessary for biochemical work, freeing the investigator from depending upon biopsies.

TL;DR: The temporomandibular-joint operation is an effective method of eliminating pain and improving the function of the masticatory apparatus in patients with severe, long-standing functional disorders arising from pathologic changes in the intra-articular components of the joint.

TL;DR: The rhesus monkey appears to be a suitable experimental animal for investigations aimed at establishing a rational basis for Ca(OH) 2 -induced root apexification and satisfied the usual histologic criteria for identification as cementum.

TL;DR: A pathosis that is associated with developmental radicular anomalies is described and it is shown that these anomalies constitute unresolvable periodontal problems, and extraction of the involved teeth is the treatment of choice.

TL;DR: A preliminary study has been undertaken in an attempt to seal the orifice to the root canal at the apex of a tooth in vitro by means of a high-power infrared laser.

TL;DR: This therapy increases permeability of edematous tissues so that free flow of blood and other body fluids in the inflamed area is restored, facilitating drainage and tissue repair.

TL;DR: A study was undertaken to demonstrate the apical development that occurs following debridement and filling of the root canal with a calcium hydroxide—camphorated parachlorophenol paste, and instead of a continuation of normal root development, a repair process was observed at the apices of the treated teeth.

TL;DR: In a roentgenographic study of children of European and Japanese descent, it was found that supplementary molar roots occurred much more frequently among Japanese descendants.

TL;DR: It is proposed that individual mixed odontogenic tumors arise at comparable stages observed during normal odontogenesis and, as such, are incapable of further differentiation and thus proliferate within the histologic confines of their innate differentiated capacity.

TL;DR: Two new cases are presented, one showing the relationship of a traumatic bone cyst to a previously existing giant-cell reparative granuloma and the other illustrating the unusual occurrence of two separate lesions on one side of the mandible.

TL;DR: The case presented here brings to six the total number of cases reported in the literature, and inclusion of salivary gland tissue in the anterior portion of the mandible is very unusual.

TL;DR: Both qualitative and quantitative data are provided which indicate that statistically significant shrinkage occurs upon setting with most root canal sealers, and the necessity for the standardization of methods to study the physical properties of root canal seals is established.

TL;DR: The results of a study of forty-one human skulls indicate that proximal osseous defects throughout the dental arches and furcation defects on facial and lingual surfaces of multirooted teeth can be identified with a high degree of accuracy from their radiographic appearance.

TL;DR: It is concluded that a 1 5 dilution may be as effective as the full concentration and, at the same time, may provide a faster recovery from the cytotoxic effects of formocresol.

TL;DR: It is demonstrated that an unfilled portion of a root canal does not necessarily preclude re-establishment of an intact and healthy periodontium.

TL;DR: It is apparent from the present study that phosphate-bonded alumina ceramic is well tolerated by tissues, does not elicit a foreign-body reaction, is rapidly infiltrated by connective tissue and bone marrow, and forms a latticework upon which osteoid and bone and dentine are deposited.