Compensating Curves.pptx
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The compensating curve refers to the anatomic curves established by the occlusal alignment of teeth to allow for balanced occlusion during lateral and protrusive jaw movements. There are two main types: 1. The anteroposterior compensating curve, exemplified by the Curve of Spee, ensures posterior tooth contact when the jaw moves forward. 2. The mediolateral compensating curve includes the Curve of Monson, Curve of Wilson, and Curve of Pleasure/Anti-Monson Curve, which help achieve lateral balance of occlusion during jaw movements. These curves are defined based on the direction of curvature seen in different planes.
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Compensating Curves.pptx
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The document provides guidelines for arranging posterior teeth in a denture prosthesis. It outlines how to mark reference lines on the occlusal rims to determine the placement of posterior teeth. It then describes how to position each individual tooth, including the maxillary and mandibular premolars and molars, in relation to the occlusal plane, vertical axis, and one another. The key points discussed are Pound's triangle for determining the lingual extent of mandibular posterior teeth and maintaining the curve of Spee.
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This document discusses various theories of tooth eruption and the phases of tooth eruption. It summarizes six main theories of tooth eruption: root elongation theory, bone remodeling theory, periodontal ligament contraction theory, hydrostatic pressure theory, pulp constriction theory, and dental follicle theory. It states that the periodontal ligament contraction theory, whereby fibroblasts in the periodontal ligament contract to apply an axial force, is the most widely accepted. It also outlines the three phases of tooth eruption: pre-eruptive, eruptive, and post-eruptive phases.
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Labial bow Functions , Constructions , Types & Indications.
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compensating curve.ppt
Compensating curves are artificial curves introduced into complete dentures to achieve balanced occlusion. They compensate for the space formed between the posterior teeth during jaw movements. There are two main types of compensating curves:
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6 occlusion
The document discusses various concepts and terminology related to occlusion for complete dentures. It defines key terms like occlusion, articulation, centric occlusion, eccentric occlusion, balanced occlusion, and lingualized occlusion. It describes different occlusal concepts for complete dentures including balanced occlusion using anatomic, semi-anatomic, or non-anatomic teeth. It also covers non-balanced occlusion concepts like neutrocentric occlusion and lingualized occlusion. The document outlines factors that influence balanced occlusion and principles generally accepted for complete denture occlusion.
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This document discusses occlusion in complete dentures. It defines key terminology like occlusion, centric occlusion, maximum intercuspation, and centric relation. It describes factors that govern tooth arrangement, like the horizontal and vertical relations to residual ridges. It discusses arranging anterior and posterior teeth, and developing the planes of occlusion. It describes types of posterior teeth and different types of complete denture occlusion like balanced, monoplane, and lingualized. It outlines the requirements of incising, working, and balancing occlusal units. Finally, it discusses factors that affect occlusal balance, like condylar guidance, incisal guidance, the plane of occlusion, compensating curve, and cusp inclination.
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Occlusion in Complete denture
This document discusses occlusion in complete dentures. It begins by defining occlusion and describing different types of natural tooth occlusion compared to complete denture occlusion. Key differences are that incising with front teeth can dislodge dentures, interferences cannot be avoided due to lack of proprioception, and malocclusion causes immediate damage in dentures. The document then outlines requirements for complete denture occlusion including stability, minimal contacts, and directing forces vertically. It describes balanced, monoplane, and lingualized occlusal schemes for dentures and factors that affect achieving balanced occlusion such as condylar guidance, incisal guidance, and compensating curves. Monoplane occlusion lacks cusps for only vertical forces while lingualized
Balanced occlusion and its importance
This document provides an overview of balanced occlusion and its importance in complete denture fabrication. It defines key terms like balanced occlusion, centric occlusion, eccentric occlusion, and discusses various theories of occlusion. It describes the requirements and goals of balanced occlusion in complete dentures. Various concepts of balanced occlusion are outlined, including those proposed by Gysi, Sears, French, Pleasure, Frush, Hanau and others. The document discusses the advantages of bilateral balanced occlusion and factors that affect achieving balanced occlusion in complete dentures.
17.occlusal schemes anatomic and semiamatomic occlusion
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The document summarizes the key steps and considerations for setting up anatomic or semi-anatomic posterior teeth on dentures to achieve balanced occlusion. It describes positioning landmarks on the casts, setting the maxillary teeth first while maintaining contacts on excursions, and then arranging the mandibular teeth to center over the ridge and engage opposing teeth. Maintaining proper marginal ridge levels and centric and balancing contacts between teeth on both sides is emphasized.17.occlusal schemes anatomic and semiamatomic occlusion
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This document provides instructions for setting up anatomic and semi-anatomic denture teeth on articulators to achieve balanced occlusion. Key steps include positioning teeth on the occlusal plane, centering posterior teeth over ridges, and ensuring contacts in centric, working, and balancing positions. Troubleshooting tips address lack of contacts, such as verifying centric occlusion and checking for interferences.orientation-jaw-relation
The document discusses orientation jaw relation and facebow transfer procedures. It defines orientation jaw relation as establishing the reference in the cranium and the relationship between the maxilla and mandible. It then describes recording orientation using a facebow to relate the maxillary cast to the articulator in the same way the maxilla relates to the temporomandibular joints. The document also summarizes the types of facebows, including arbitrary and kinematic, and procedures for using each in complete dentures and fixed prosthodontics.
Orientation jaw relation
The document discusses the importance of accurately transferring jaw relationships to an articulator. It describes the significance of the facebow in recording the maxillomandibular relationship, including the orientation of the jaws to the cranium. The document outlines the history of the facebow, types of facebows, and how to perform a facebow recording. The facebow is essential for transferring jaw relationships to simulate jaw movements when fabricating dental prostheses.
18.occlusal schemes monoplane with balancing ramps
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- 2. Compensating Curve The anteroposterior curving (in the median plane) & the mediolateral curving (in the frontal plane) within the alignment of the occluding surfaces & incisal edges of artificial teeth that is used to develop balanced occlusion. (GPT 8) The arc introduced in the construction of complete removable dental prostheses to compensate for the opening influences produced by the condylar & incisal guidance’s during lateral & protrusive mandibular excursive movements. (GPT 8)
- 3. Determined by inclination of posterior teeth & their vertical relationship to occlusal plane. 3ypes of curves Anterio-posterior Compensating Curve ○ Curve of Spee Medio-lateral Compensating Curve ○ Curve of Monson ○ Curve of Wilson ○ Pleasure Curve/ Anti-Monson Curve Compensating Curve
- 4. Compensating Curve Definition: The anatomic curve established by the occlusal alignment of the teeth, as projected onto the median plane, beginning with the cusp tip of the mandibular canine & following the buccal cusp tips of the premolar & molar teeth, continuing through the anterior border of the mandibular ramus, ending with the anterior most portion of the mandibular condyle. (Graf Spee, 1890) Curve of Spee
- 5. Posterior teeth separation when the curve of Spee not incorporated. Incorporating the Curve Spee will provide posterior tooth contact during protrusion. Compensating Curve Curve of Spee Significance: Runs from buccal cusp of mandibular posterior teeth starting from canine. When the patient moves his mandible forward, the posterior teeth set on this curve will continue to remain in contact. Thus, avoiding disocclusion.
- 6. Compensating Curve Definition: Curve of occlusion in which each cusp & incisal edge touches or conforms to a segment of the surface of a sphere 8 inches in diameter with its center in the region of the glabella. (George S. Monson, 1920) Curve of Monson Significance: Runs from palatal & buccal cusps of maxillary molars. Help in lateral balance of occlusion.
- 7. Compensating Curve Definition: The curve in the lower arch being concave & the one in the upper arch being convex. (George H. Wilson, 1911) Curve of Wilson Significance: It is followed when the 1st premolar are arranged to prevent their interference to lateral movements.
- 8. Compensating Curve Definition: A helicoid curve of occlusion that, when viewed in the frontal plane, conforms to a curve that is convex from the superior view, except for the last molars which reverse that pattern. (Pleasure MA, 1937) Curve of Pleasure/ Anti-Monson Curve Significance: In excessive wear of the teeth, the occlusal surfaces of the mandibular teeth slope facially instead of lingually & those of the maxillary teeth incline lingually.
- 9. THANK YOU…
Editor's Notes
- The maxillary foundation area mainly comprises of bone of the hard palate & the residual ridge which is covered by a mucous membrane.
- The maxillary foundation area mainly comprises of bone of the hard palate & the residual ridge which is covered by a mucous membrane.
- runs across the palatal & buccal cusps of maxillary molars.
- A curve of occlusion which in transverse cross-section conform to a line which is convex upward except for the last molar.