Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Odontometry”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

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

At least 631 records · Page 35Linked to original sources
PubMed1996

An investigation into the measurement of the working length of immature incisor teeth requiring endodontic treatment in children.

A study was undertaken to determine if a tactile technique, using absorbent paper points, could be used to estimate the working length of nonvital immature incisor teeth undergoing endodontic treatment. Two operators were involved in measuring 35 incisor teeth. The tactile technique was found to be valid and reliable. In 95% of the cases the estimated working length was within 1 mm of the radiographic diagnostic length. It is recommended that diagnostic radiographs are no longer necessary in the majority of cases involving endodontic treatment of incisor teeth requiring root end closure in children, for practitioners who are regularly carrying out endodontic treatment of immature incisor teeth. However, if a tooth has been on open drainage a diagnostic radiograph is still required.

Adolescent↗
PubMed1998

Factors affecting the lifespan of the human dentition in Britain prior to the seventeenth century.

OBJECTIVE: To confirm that compensatory eruption (supereruption) of teeth past a stable periodontium occurs in response to severe occlusal attrition. DESIGN: Regression analysis study from radiographs and direct measurements. SETTING: Archaeological material at the University of Aberdeen. SUBJECTS: 47 individuals > 21 years old and dating from Late Mediaeval times (1300-1600 AD). MAIN OUTCOME MEASURES: Occlusal attrition was recorded on the first permanent mandibular molars. Measurements on radiographs of the teeth from the fixed point of the inferior dental canal were taken to the occlusal surface, the alveolar crest and the tooth apex. Regression analysis was undertaken between these variables and related to attrition (age). RESULTS: Continuous eruption of the permanent human dentition past a stable periodontium does occur in response to tooth height lost by wear, despite the fact that supereruption may lead to the eventual self destruction of the dentition. This mechanism was primarily responsible for the early loss (at 40-45 years of age) of dentitions in Mediaeval times. CONCLUSIONS: Stability of occlusal height appears to be an important function of the dentition and if triggered by severe wear will lead to increasing root exposure and eventual exfoliation of the teeth. It is important not to confuse bone loss due to periodontitis with root exposure due to supereruption of the teeth.

Adult↗
PubMed2004

Five mandibular incisors: an autosomal recessive trait?

A fifth mandibular incisor is a eumorphic supernumerary tooth and has rarely been described in the medical literature. We report here a large Lebanese consanguineous family where four individuals displayed five incisors in the anterior mandible. Such familial observation has not been previously described. The possibility of an autosomal recessive inheritance for this nonsyndromic trait is discussed.

Adult↗
PubMed2005

Anterior dental aesthetics: Dental perspective.

The purpose of this series is to convey the principles governing our aesthetic senses. Usually meaning visual perception, aesthetics is not merely limited to the ocular apparatus. The concept of aesthetics encompasses both the time-arts such as music, theatre, literature and film, as well as space-arts such as paintings, sculpture and architecture.

Age Factors↗
PubMed2002

Radiographic practices of dentists undertaking endodontics in New Zealand.

OBJECTIVES: To determine the radiographic practices of New Zealand dentists undertaking root canal treatment, and to investigate the relationship between radiographic practices and educational and clinical factors. METHODS: A questionnaire was sent to all 1200 general dental practitioners and five specialist endodontists in New Zealand. Data were subjected to descriptive and analytical statistics. RESULTS: The response rate was 79%. The mean number of root canal treatments done by general dentists in the previous 12 months was 103, and for the specialists 938. Pre-operative views were taken by 57.1% of respondents all the time and by 34.8% in most cases. The long cone paralleling and bisecting angle techniques were in regular use by similar numbers of respondents, and over one half of the practitioners regularly used film holders and electronic apex locators. Working length films were taken by 67% of practitioners all the time and by 18% in most cases. One-quarter of practitioners took a master point view all the time, and 15% did this for most cases. Almost 65% always took a film of the completed root filling and 21% did for most cases. Twenty-three per cent of practitioners did not follow up their work. CONCLUSIONS: The majority of respondents used radiographs pre-operatively, for working length assessment and to assess the final root filling. There was a general improvement in radiographic practices compared with data from a previous national survey held in 1980.

Dental Pulp Cavity↗
PubMed1975

Othodontic aspects of dental anthropology.

Variation in the size, shape, number, arrangement, and wear pattern of the teeth of man has long been an area of great interest to physical anthropologists. In this paper some of the remarkable variations to be found in the human dentition are identified and translated in orthodontic terms. Teeth are by nature imperfect structures, often just as disfigured individually as the malocclusions they form collectively. It is important that the orthodontist cultivates an anthropologist's eye for tooth variations. With this sensitivity he shall surely enlarge his understanding of the limitations of orthodontic therapy and shall appreciate the valuable role of tooth altering procedures in achieving treatment success.

Adolescent↗
PubMed1977

The etiology and prediction of mandibular third molar impaction.

1. Skeletal Class II dental base relationship with a shorter, narrower, more acute angled madible was found in association with impacted third molars, compared with erupted teeth. 2. These differences were found at age 18+ years but were less obvious at age 10 to 11 years. 3. There was a reduced amount of mandibular growth in impacted third molar cases. 4. There was a slight tendency for impacted third molars to be larger than those which erupted. 5. The presence of a space between second and third molars in the early stages of development is not an indication that the third molar will erupt. 6. The developmental angulation of the third molar to the mandibular plane was higher in the impacted third molar group. 7. Accurate prediction of third molar impaction from radiographic measurements is not possible at age 10 to 11 years.

Adolescent↗