The literature supports that bilateral mandibular manipulation, compared with gothic arch tracing or chin-point guidance is a clinical method to consistently record centric relation (CR). Chin-point guidance. In Group I a clinical analysis of occlusal patterns using bilateral mandibular manipulation (BMM) was compared to results with a chin point (CPM) method. A second method investigated in this study was described by McCollum5 when he suggested the importance of the hinge axis in centric re- lation records. Some clinicians will bi-manually manipulate their denture patients though. T his study investigated variations in occlusal prematurities and condylar positions using different methods of determining centric relation. Prepping for CR record. Allow the patient to close into contact 7. Centric relation record: types of guidance. 2) DAWSONS BIMANUAL MANIPULATION : thumb lightly over the symphysis region and fingers along the inferior border of the mandible 3) TONGUE TO PALATE: tongue has to touch the posterior border of the hard palate REGISTRATION TECHNIQUES: Mandible should freely arc 6. Purpose This study was conducted to determine statistically the most repeatable mandibular position of 3 centric relation methods.. Materials and Methods Three centric relation recording methods commonly reported in the literature were selected: bimanual mandibular manipulation with a jig, chin point guidance with a jig, and Gothic arch tracing. Patient sit in a slightly supine position 2. RESUMO Este estudo comparou o deslocamento mandibular a partir de 3 métodos de registro da relação cêntrica usando um jig anterior associado com: (A) guia da ponta do mento; (B) deglutição grupo controle (C) manipulação bimanual. 1. 1. chin point 2. bilateral manipulation 3. unguided method. Granger6 stated that centric relation is that position where the mandi- ble rotates around the hinge axis. In securing maxillo-mandibular records, both investigators recommended the use of Chin Point Guidance recommended by Gutchet in 1970 in retruding the mandible. Occlusion rim notched to aid stabilizing the record bases 3. When to take centric relation record-edentulous of if dentition is worn down. Generally 1. Manipulate the patient closed into centric relation using chin point guidance being sure the patient doesn't deviate from centric relation during the cure time. Key Words: centric relation, chin point guidance, swallowing, bimanual manipulation. Chin point guidance 32. Thirty patients were randomly placed into three groups of 10. Denture patients are often put into a posterior rather than anterior position because of chin-point guidance techniques. Once material is cured, chip the Triad gel nubs away and remove the lower denture from the multi-unit abutments and proceed with the laboratory process to complete the prosthesis. Centric-relation recording techniques • Swallowing or free closure (Shanahan) • Chin point guidance • Chin-point guidance with anterior jig • Bilateral manipulation Kantor ME, Silverman SI and Garfinkel L. Centric-relation recording techniques-a comparative investigation. McCollum and Granger stated that Centric Relation is that position where the mandible rotates around the hinge axis. J Prosthet Dent 1972;28(6):593- … Bimanual manipulation 2. Jiggle the mandible 5. CENTRIC RELATION: 1) CHIN POINT GUIDANCE : mandible is guided in an arcing motion to the terminal hinge position. 1. cotton roll between anterior teeth and instruct patient to bite on back teeth . Index fingers on the rim, thumbs under symphysis (Chin point guidance) 4. 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