Compensating Curves.pptx
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This document discusses different types of compensating curves used in dental prosthetics to establish balanced articulation during jaw movements. It describes the anteroposterior and mediolateral compensating curves that begin with the first replacement tooth and continue through the second molar. It also outlines the curve of spee from the mandibular canine through the condyle, the curve of Wilson to arrange the lower molars, and the curve of Monson connecting the curve of spee and Wilson to all cusps on a 4 inch radius.
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4. Factors involved
placement of orthodontic brackets
1. Proper bracket placement is important for achieving optimal orthodontic treatment outcomes. Key factors include positioning brackets at the facial axis point and aligning them along the Andrews plane.
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3. Modifications to the standard mesiodistal positioning may be needed for rotated or substituted teeth. The goal is to place brackets in positions that will help correct rotations and achieve ideal functional and aesthetic results.
16.occlusal schemes lingualized occlusion
The document discusses setting up teeth for a balanced occlusion in a complete denture. It describes placing an anterior-posterior curve in the maxillary arch and a slight curve from side to side in the mandibular arch. It provides details on positioning each individual tooth, including landmarks to use and desired angulations, overlaps, and relationships between opposing teeth. The goal is to create a balanced occlusion that provides stability and proper function during speech and jaw movements.
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Stage iii of begg’s technique changed /certified fixed orthodontic courses by...
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10. posterior teeth arrangement
This document discusses the arrangement of posterior teeth in complete dentures. It begins by outlining the individual positioning of maxillary and mandibular premolars and molars, noting things like their orientation relative to the occlusal plane. The maxillary first molar is described as the "key tooth" in occlusion. The document then compares natural dentition occlusion to complete denture occlusion and lists goals for establishing balanced articulation in dentures. Factors like condylar guidance, incisal guidance, and compensating curves are introduced as important considerations for achieving balanced occlusion.
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- 2. Introduction The arrangement of nonanatomical posterior teeth with both anteroposterior and mediolateral com- pensating curves permits the establishment of a balanced articulation.
- 3. The primary function of compensating curve is to provide balancing contacts for protrusive mandibular movements.
- 4. Anteroposterior Compensating Curve ● Begins at the distal marginal ridge of the first posterior replacement tooth ● continues through the second molar ● involves the cuspid tips and the retromolar pads as the anatomical guides. ● extent of the curve rarely exceeds 20 degrees.
- 5. Mediolateral Compensating Curve ● To achieve balanced articulation during lateral movements ● Also is initiated with the first replacement tooth continues through the second molar. ● The facial cusps elevated in relation to the lingual cusps to establish this curve varies with the condylar and incisal guidances.
- 6. Curve of spee ● Beginning with the cusp tip of the mandibular canine ● following the buccal cusp tips of the premolar and molar teeth, ● continuing through the anterior border of mandibular ramus, ● ending with the anterior most portion of the mandibular condyle.
- 7. Curve of Wilson ● It is used to arrange the molars ● The lower teethare inclind lingually,giving prominence to the buccal cusps and brining them into heavy occlusal contact with the upper buccal cusp during lateral movements on working side
- 8. Curve of Monson ● Manson (1920), at a later date, connected the curve of spee and curve of wilson to all cusps and incisal edges, and suggested that the mandibular arch adopted itself to the curved segment of a sphere of a 4 inch radius
- 9. Thank you