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At least 307 records · Page 17Linked to original sources
PubMed1985

Pericoronitis: a reappraisal of its clinical and microbiologic aspects.

Pericoronitis is an infectious disease of the operculum overlying an erupting or semi-impacted tooth. It manifests itself mainly in late adolescence and young adulthood and nearly always occurs around the lower third molar. The distinctive location, age, clinical picture, and link with predisposing factors warranted a reappraisal of pericoronitis and its etiology. Spirochetes and fusobacteria proved prevalent at all stages of the disease. The presence of these microbacteria may provide a clue as to the late appearance, particular location, and singular clinical picture of pericoronitis. The fact that spirochetes and fusobacteria are also found in acute necrotizing ulcerative gingivitis, and have been associated with alveolar osteitis, indicates a possible relationship between these disorders and pericoronitis.

Adolescent↗
PubMed1999

Change in clinical status of third molars in adults during 12 years of observation.

PURPOSE: The aim of the study was to follow the clinical changes in third molar status during a 12-year period in patients aged 20 to 32 years. PATIENTS AND METHODS: The study was based on a follow-up of 81 university students (32 men, 49 women). They were clinically examined and panoramic radiographs were taken at baseline (mean age, 20.7+/-0.5 years) and at the end of the study (mean age, 32.6+/-0.6 years). RESULTS: The students had 285 unerupted, partially erupted, or fully erupted third molars at the beginning of the study, and 150 at the end. On final examination, 115 teeth were erupted. During the first 6 years from age 20 to 26, various clinical changes took place in the status of the third molars. In the second 6 years, until age 32, the two main changes were either removal or eruption. During the 12-year follow-up, 22% of third molars erupted, a few even after 26 years of age; the percentage of third molars removed was 42%. CONCLUSION: Third molars undergo continuous clinical change at least up to the age of 32 years.

Adult↗
PubMed1979

A model for evaluating the analgesic effect of a new fixed ratio combination analgesic in patients undergoing oral surgery.

A special model designed for evaluating the analgesic effect of oral analgesics was based on a short-time registration period of immediate postoperative pain. One-hour intervals in pain registration and a minimum of 2 h between the tablet intake allowed a good estimation of changes in pain levels. The patient material consisted of 112 patients and from each patient a lower impacted wisdom tooth was removed. The test model was used to compare two analgesic drugs with placebo. The two pharmacologically active preparations were Doleron (dextropropoxyphene, acetylsalicylic acid, phenazone, caffeine and Transergan) and Astra 2167 (dextropropoxyphene and acetylsalicylic acid). The trial was double blind and the tablets were administered according to a crossover design. There was no statistically significant difference in analgesic effect between Astra 2167 and Doleron, and both drugs were superior to placebo. Finally, the trial showed that a reduction of the number of components of a compound analgesic to some degree reduced the pain relieving effect on this particular postoperative pain. This observed reduction was however, not statistically significant.

Adult↗
PubMed1986

Adenomatoid odontogenic tumor mimicking a globulo-maxillary cyst.

A case of an adenomatoid odontogenic tumor (AOT) simulating a globulo-maxillary cyst is described. Clinical, radiographic and microscopic findings as well as the differential diagnosis are discussed. The present case brings the number of AOT cases without any relationship to an impacted tooth to 23; the number of cases resembling a globulo-maxillary cyst to 6.

Adolescent↗
PubMed1990

Spontaneous reeruption of a secondarily retained permanent lower molar and an unusual migration of a lower third molar.

Secondary retention refers to cessation of eruption of a tooth after its emergence. It occurs mainly in the deciduous dentition, but it is also seen on rare occasions in the permanent dentition. Although ankylosis has been suggested as the main etiologic factor, the exact biologic mechanism of secondary retention is not yet known. This article presents a case of spontaneous reeruption of a secondarily retained permanent molar, which is very rare. It also describes an unusual migration of a lower third molar in the same patient.

Adult↗
PubMed1997

Cleidocranial dysplasia: Part 1--General principles of the orthodontic and surgical treatment modality.

Over several decades, occasional reports of dental treatment provided by an individual practitioner to patients suffering with cleidocranial dysplasia have appeared in the literature. In the past, the main treatment was prosthetic replacement. Orthodontic treatment has only recently been considered as a serious treatment option, with success being described in several aspects of this treatment modality, in published individual case reports. Given the rarity of the condition, guidelines for the treatment of cleidocranial dysplasia are difficult to find in the literature, because few practitioners have treated enough cases to be in a position to make such recommendations. Two different approaches have been proposed in the past and are discussed here. The relative advantages of a third approach are expounded in detail.

Child↗
PubMed1987

Psychiatric disorders in orofacial dysaesthesia.

70 patients with orofacial dysaesthesia were clinically examined at the Department of Oral and Maxillofacial Surgery of the University of Helsinki. All the patients were referred for a psychiatric consultation. Later 16 refused to attend. 12 of the 54 patients (22.2%) who took part in the psychiatric interview were psychotic, 27 patients (50.0%) had a moderate mental disorder and 11 patients (20.4%) a mild psychiatric disorder. 4 of the patients had no psychic diagnosis (psychically healthy). The control group, which comprised 44 patients referred to the Department for surgical extraction of an impacted tooth, filled in the Cornell Medical Index questionnaire. 3 of the controls (6.8%) had a severe mental disturbance, 5 (11.4%) a moderate psychic disorder and 4 (9.1%) a mild psychiatric disorder, whereas 32 patients (72.7%) were mentally healthy. The results show that there is a psychic background in most patients with chronic orofacial pain who have no clinical findings corresponding to the sensation of somatic pain.

Adult↗
PubMed1999

The use of panoramic radiographs to localize displaced maxillary canines.

OBJECTIVE: The purpose of this investigation was to develop a reliable method of diagnosing the position of a displaced maxillary canine on the basis of a single panoramic radiograph. STUDY DESIGN: A total of 115 panoramic radiographs depicting 164 displaced maxillary canines were evaluated. The ratio of the width of the displaced canine to the width of the homolateral central incisor (the canine-incisor index) and the ratio of the width of the displaced canine to the width of the contralateral canine (the canine-canine index) were calculated. The height of the crown of each displaced canine was classified in the vertical plane, relative to the adjacent incisor, as apical, middle, or coronal. RESULTS: There was an overlap in the canine-incisor index ranges of the buccal (0.94-1. 45) and palatal (1.15-1.29) canines in the apical zone. In the middle and coronal zones, a clear difference could be seen between the canine-incisor indices of labially (0.78-1.11) and palatally (1.15-1.7) located canines. A cut-off point of 1.15 was determined. CONCLUSIONS: Provided that vertical restriction and the canine-incisor index are used, the panoramic radiograph can serve as a useful indicator for determining the position of an unerupted maxillary canine.

Adolescent↗
PubMed1998

An unusual case of hyperdontia [corrected].

The presence of supernumerary teeth is not uncommon but there have been very few documented cases of bilateral maxillary and mandibular supernumeraries distal to third molars. This case study looks at the frequency of and complications arising from supernumeraries as well as specifically covering the presentation and subsequent removal in practice of five supernumeraries distal to third molars. Good and thorough radiographs are essential for correct diagnosis.

Adult↗