Prosthodontics Trimming Master Casts For Complete Dentures Guideline to which the anterior part of the base of the cast is trimmed: trim to these lines for symmetry (fig. 4, e) . 5. trim the posterior corners of the base of the cast by approximately bisecting the angle made by the distal end and the sides of the cast (fig. 4, e) . mandibular cast trimming. 1. 565 trimming of the record base. in this example, 3 prefabricated metal plate (by panadent) is used in making the registration. after the patient has closed the teeth firmly on the plate, it is trimmed back to the width of the maxillary dental arch. sharp angles are rounded over with a carborundum stone.
Cast Separation Remove From Alginate Impression Trimming Diagnostic Also, certain irreversible hydrocolloid materials become distorted if held in the mouth more than 2 or 3 minutes after gelation. 3 after removal (fig. 2 3d), the impression should be rinsed and disinfected, dried slightly with a gentle air stream, and poured immediately. for disinfection, spraying with a suitable glutaraldehyde and placement in a self sealing plastic bag for approximately 10. If the tray does not freely separate from the cast, determine the location of the obstruction on the periphery, and carefully remove it with a laboratory knife. j. avoid rocking the impression tray back and forth or side to side. this may cause the teeth to fracture. k. trim the base and sides of the cast on the model trimmer. Remove the cast from the model trimmer and examine it to see if it sits flat (180 degrees) when placed on the workbench. 3. trim each side roughly parallel to the maxillary teeth, approximately 65 degrees from the heels. allow 3 5 mm of space beyond the facial surfaces of the teeth on the cast. 4. trim the anterior portion to form a point at. Chill the wax wafer to remove it from the cast without distortion. while the patient is present, soften the wafer slightly in a water bath. place the wafer against the upper teeth and have the patient move into left lateral excursion until the lower teeth locate the indentations in the wax made by the mandibular cast.
Complete Denture Trimming Full Upper And Lower Dentures The Dental Remove the cast from the model trimmer and examine it to see if it sits flat (180 degrees) when placed on the workbench. 3. trim each side roughly parallel to the maxillary teeth, approximately 65 degrees from the heels. allow 3 5 mm of space beyond the facial surfaces of the teeth on the cast. 4. trim the anterior portion to form a point at. Chill the wax wafer to remove it from the cast without distortion. while the patient is present, soften the wafer slightly in a water bath. place the wafer against the upper teeth and have the patient move into left lateral excursion until the lower teeth locate the indentations in the wax made by the mandibular cast. The cast should be ½ inch thick. trim the sides of the cast so that there is an even 4 6 mm of land around the cast. trim the land with a burr or sharp knife and reduce so that the depth of the peripheral roll is 2 3 mm throughout. trimming the cast; 19. trim master casts. the base should be no thicker than 15 20 mm. if the base is too thick. Special trays are made of different materials. the best ones are those made of cold curing resins which are quick to make and are reliable. the muscle trimming is generally done by any low fusing compound. certain methods advocate the use of three small compound stops in the base area of the special tray before doing the muscle trimming. this.
Trimming Casts Youtube The cast should be ½ inch thick. trim the sides of the cast so that there is an even 4 6 mm of land around the cast. trim the land with a burr or sharp knife and reduce so that the depth of the peripheral roll is 2 3 mm throughout. trimming the cast; 19. trim master casts. the base should be no thicker than 15 20 mm. if the base is too thick. Special trays are made of different materials. the best ones are those made of cold curing resins which are quick to make and are reliable. the muscle trimming is generally done by any low fusing compound. certain methods advocate the use of three small compound stops in the base area of the special tray before doing the muscle trimming. this.
Maxillary Cast Trimming Youtube
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