Original scientific paper

Comparative Analysis of Pontic Dimensions in Lateral Bridges

Ketij Mehulić ; Zavod za fiksnu protetiku Stomatološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Ivo Baučić ; Zavod za fiksnu protetiku Stomatološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Adnan Ćatović ; Zavod za fiksnu protetiku Stomatološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Jasenka Živko-Babić ; Zavod za fiksnu protetiku Stomatološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Jasmina Stipetić ; Zavod za fiksnu protetiku Stomatološki fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska

Abstract

Objectives: The aim of the investigation was to analyse the topographical and anatomical shape o f premolar-molar pontic segments in relation to the following variables: tooth occurrence in either one jaw or both jaws, prevalence o f specific masticatory unit replacements according to sex, mesiodistal, buccolingval and occlusogingival diameter as well as the pontic height and the hygienic angle values. Material and Methods: The investigation included 251 patients aged between 18 and 75 whose 973 units of lateral bridges on both jaws were examined. For this purpose a slide rule and modified protractor were used. Data were obtained from analysing information expressed in numbers. Statistical technique employed was the percentage difference test. Homologous natural teeth were a control group. Results and Conclusion: First molar is the most commonly replaced tooth in both jaws in men as well as in the mandible in women, whereas first premolar is the most commonly replaced tooth in women's maxilla. Mesiodistal diameter o f lateral segment pontics differs from the control group values, particularly in molar pontics, due to both the mesialization of the distal tooth and the reduction of the interrupted dental arch. Buccopalatal or buccolingual dimensions of the lateral segment pontics showed the biggest deviation, which was expected with regard to the static and hygienic reguirements. The occluso gingival diameter o f the lateral segment pontics was almost identical to the same diameter o f the maxilla check specimen, whereas it proved to be slightly smaller in the mandible. This points to height reduction between the jaws. The means of the hygienic angle in the maxillary and mandibular pontics amounted to 48° and 53° respectively.

Keywords

pontics; lateral bridges; oral health; dental aesthetics

Hrčak ID:

97762

URI

https://hrcak.srce.hr/97762

Publication date:

15.3.1998.

Article data in other languages: croatian

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