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Trauma From Occlusion.pptx
This document provides an overview of trauma from occlusion including: - Definitions from various dental organizations - Etiology and types of occlusal forces that can cause trauma - Historical perspectives on the study of occlusion and trauma - Terminologies used to describe occlusal trauma - Stages of tissue response to excessive occlusal forces - Signs and symptoms of trauma from occlusion - Classification systems for trauma from occlusion - Examination and diagnosis techniques - Radiographic signs of trauma - Debate around reversibility of traumatic occlusion - Considerations for trauma around dental implants - Treatment approaches including occlusal adjustments and splinting
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Trauma From Occlusion.pptx
- 1. DR. BEENA VIJAYANPARVATHY II nd YEAR PG
- 2. CONTENTS • DEFINITION • ETIOLOGY •HISTORICAL PRESPECTIVE • TERMINOLOGIES WHICH HAVE BEEN USED TO DESCRIBE OCCLSAL TRAUMA • REVIEW OF LITERATURE • OCCLUSAL FORCES DURING JAW MOVEMENTS • CLASSIFICATION • STAGES OF TISSUE RESPONSE TO EXCESSIVE OCCLUSAL FORCES • EXAMINATION AND DIAGNOSIS
- 3. • RADIOGRAPHIC SIGNS •IS TRAUMATIC OCCLUSION REVERSIBLE? • TRAUMA FROM OCCLUSION ARROUND IMPLANTS • OUR PRESENT UNDERSTANDING • TREATMENT
- 4. DEFINITION • WHO, 1978 •GPT, 2001 • Jan De Boever, 2004 • Carranza, 2006
- 5. ETIOLOGY • Precipitating factors(Primary etiology) Destructive occlusal forces Magnitude of force Direction of force Frequency of force Duration of force • Predisposing factors Development of TFO indirectly Intrinsic factors Extrinsic factors
- 6. Types of OcclusalForces • Normal physiological forces • Impact forces • Continuous forces • Jiggling forces
- 7. HISTORICAL PRESPECTIVE • Karolyi,1901 • Box’s Study, 1935 • Stone’s Study, 1938 • Bhaskar & Orban, 1955
- 8. TERMINOLOGIES WHICH HAVEBEEN USED TO DESCRIBE OCCLUSAL TRAUMA • Stillman 1917 • Box 1930 • Ramfjord & Ash 1972 • Muhlemann 1956 Traumatogenic occlusal situation • Orban 1958 & Pichard 1965 Periodontal traumatism • Glickman 1974 Trauma from Occlusion Traumatic occlusion
- 9. REVIEWOF LITERATURE • Stillmann1917 AUTOPSY STUDIES: • Weinman et al • Glickman’s Concept:- – Glickman & Smulow (1962,1969) – Glickman (1963,1965) “Theory of Co-destruction”
- 11. • Waerhaug’s Concept ANIMALSTUDY: • Rochester Group (Polson & Co-workers) • Gothenburg Group (Lindhe & Co-workers) HUMAN TRIALS: • Burgett et al 1992 • Shefter GJ & Philstrom BL • McGuire MK & Nunn ME
- 12. OCCLUSAL FORCES DURINGJAW MOVEMENTS • Svanberg GK, King GJ & Gibbs CH
- 13. CLASSIFICATION • Acute TraumaFrom Occlusion • Chronic Trauma From Occlusion • Primary Trauma From Occlusion – GPT, AAP 1992 – Polson AM, 1976 • Secondary Trauma From Occlusion – GPT, AAP 1992
- 14. STAGES OF TISSUERESPONSE TO EXCESSIVE OCCLUSAL FORCES • Carranza (1967, 1970) I. Stage I, Injury – Slightly excessive forces Zaki AE,1963 – Greater than slightly excessive force Rygh P,1972- 1974) – Severly high forces Stallard,1964 & Stahl SS,1975) II. Stage II, Repair Buttressing Bone Formation – Glickman & Smulov, 1965 Lipping - Glickman & Smulov, 1962
- 15. III. Stage III,Adaptive Remodelling of the Periodontium – Lindhe & Ericsson, 1984 – Carranza & Dotto, 1966
- 17. EXAMINATION AND DIAGNOSIS Signsof Trauma From Occlusion • Tooth Mobility • Tooth Migration • Wear Patterns • Abfraction, especially in premolars • V-Shaped or Angled Gingival Recession • Fremitus Test Ingervall B, 1972
- 18. Symptoms of TraumaFrom Occlusion • Persistent Discomfort on Eating • Thermal Sensitivity • Muscle Hypertonicity
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- 21. TRAUMA FROM OCCLUSION ARROUNDIMPLANTS
- 22. TREATMENT • Occlusal adjustments •Management of parafunctional habits • Splinting of teeth • Orthodontic tooth movement • Occlusal reconstruction • Extraction of selected teeth Perio 2000, 2017
- 23.
- 24. REFERENCE • Role OfOcclusion In The Etiology And Treatment, Of Periodontal Disease, IRVING GLICKMAN, Tufts University School Of Dental Medicine, Boston, Massachusetts 02111, USA. • Radiographs In Periodontics, Niklaus P. Langi And Roger W. HILLS, Journal Of Clinical Periodontology: 1977: 4: 16-28. • The Infrabony Pocket And Its Relationship To Trauma From Occlusion And Subgingival Plaque By Jens Waerhaug. • Role Of Occlusion In Periodontal Disease, Euloir Passanezi, Adriana Campos Passanezi Sant'ana. • Association Of Trauma From Occlusion With Localized Gingival Recession In Mandibular Anterior Teeth Pratibha Panduranga Kundapur, Khandige Mahalinga Bhat, And Giliyar Subraya Bhat, Dent Res J (Isfahan). 2009 Autumn; 6(2): 71–74. • Occlusal Trauma And Excessive Occlusal Forces: Narrative Review, Case Definitions, And Diagnostic Considerations Jingyuan Fan Jack G. Caton. • Clinical Diagnosis Of Trauma From Occlusion And Its Relation With Severity Of Periodontitis L. J. Jtn And C. F. Cao.