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Coronal fractures in posterior teeth.

P Lagouvardos, P Sourai, G Douvitsas

    Operative Dentistry
    |January 1, 1989
    PubMed
    Summary
    This summary is machine-generated.

    Posterior tooth coronal fractures are common dental problems. Factors like caries and tooth morphology significantly influence fracture occurrence, not patient age or sex.

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    Area of Science:

    • Dentistry
    • Dental Traumatology

    Background:

    • Coronal fractures of posterior teeth present significant restorative challenges.
    • Fractures often extend below the free gingival crest, complicating treatment.

    Purpose of the Study:

    • To investigate factors influencing the occurrence and characteristics of coronal fractures in posterior teeth.
    • To identify key determinants of fracture depth and location.

    Main Methods:

    • Analysis of 200 cases of coronal fractures in posterior teeth.
    • Evaluation of patient demographics, tooth type, pulp vitality, caries, restoration status, and tooth morphology.

    Main Results:

    • Fracture frequency was not associated with patient sex, age, tooth type, location, or pulp vitality.

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  • Caries, restored surfaces, and tooth morphology were significant factors affecting fracture appearance.
  • Lingual cusps fractured more frequently than buccal cusps.
  • Fracture depth correlated with pulp vitality: above/at crest for vital, below crest for non-vital teeth.

    • Conclusions:

    • Conservative cavity designs and endodontic access can reduce tooth or restoration fracture frequency.
    • Understanding contributing factors is crucial for preventing and managing posterior tooth fractures.