Operative Flashcards
What is the significance of occlusion in operative dentistry?
Occlusion ensures that restorations function properly, distribute forces evenly, and maintain oral health.
How does occlusion impact restorative treatments?
It affects force distribution, longevity of restorations, and the comfort of the patient.
What are the key factors influencing occlusion in operative dentistry?
Positional relationships, muscle function, tooth contacts, and jaw movements.
RM JC
What is the first step in assessing occlusion?
A thorough clinical examination to identify tooth positions and jaw movements.
How do you diagnose occlusal problems?
By analyzing tooth contacts, TMJ function, and muscle activity during jaw movements.
What is the importance of proper treatment planning in occlusion?
It ensures that restorative treatments align with the patient’s occlusion and prevent future complications.
What are the main types of forces acting on a restored tooth?
Tension, compression, shear, and flexion.
How does tension affect restored teeth?
It stretches the material, potentially leading to fractures.
What is the role of compression in occlusion?
Compression forces push down on teeth and restorations, influencing stability.
What is shear force in occlusion?
It is the force that acts parallel to the surface, causing sliding between surfaces.
What is flexion in restored teeth?
Flexion is the bending movement that affects the strength and integrity of restorations.
What is included in a comprehensive occlusion assessment?
Assessment of tooth positions, jaw mobility, and palpation of jaw muscles.
How do you measure jaw mobility in occlusion assessment?
By evaluating the range of motion and checking for TMJ function.
Why is palpating jaw muscles important in occlusion assessment?
To detect tension or discomfort that may indicate occlusal problems.
What is the objective of occlusion assessment?
To detect signs of occlusal problems and establish a baseline for future changes.
Why is it important to assess tooth contacts in occlusion?
To understand tooth relationships during function and parafunction.
What should be examined in voluntary closure (centric occlusion)?
The contact between opposing teeth when the mandible is in centric relation.
What is centric relation (CR)?
CR is when the mandibular condyles are in their most anterior-superior position against the articular disc.
What is the difference between CR and MIP?
CR is a joint-based position, while MIP is the position where the teeth are fully occluded.
What is the significance of freedom in centric occlusion?
It allows slight movement within the centric relation, which is crucial for comfort and function.
What are the characteristics of an ideal occlusion?
Centric occlusion in centric relation, no posterior interferences, and teeth contacts within adaptive capabilities.
What are the symptoms of occlusal problems?
Sensitivity, pain on biting, periodontal issues, and TMJ problems.
How does TMJ clicking relate to occlusion problems?
It may indicate occlusal disharmonies affecting jaw joint function.
What are common radiographic findings in occlusion problems?
Widened periodontal membrane space and root resorption.
What is abfraction in occlusal problems?
Loss of tooth structure at the cervical area due to occlusal stress.
What are wear facets in occlusion?
Flattened areas on teeth due to excessive occlusal forces.
How does tooth migration occur due to occlusion issues?
Occlusal imbalances can cause teeth to shift or tilt over time.
What is bruxism, and how does it affect occlusion?
Bruxism is clenching or grinding of teeth, leading to occlusal wear and muscle pain.
How does muscle soreness relate to occlusion?
Improper occlusion can cause overuse or strain of the muscles of mastication.
What tools are used to assess occlusion?
Articulating papers, radiographs, diagnostic casts, and computerized occlusal analysis.
How are articulating papers used in occlusion assessment?
To visualize the contact points between opposing teeth.
What are the disadvantages of using articulating paper?
They can be easily ruined by saliva, are thick, and have an inflexible base.
How are radiographs used in occlusion diagnosis?
To identify structural changes, such as root resorption or widening of the periodontal membrane.
What is the purpose of a diagnostic cast in occlusion assessment?
To create a model for evaluating the patient’s occlusion outside the mouth.
What is the T-Scan in occlusion analysis?
A computerized tool that provides dynamic analysis of occlusion by detecting premature contacts.
What are the benefits of using T-Scan in occlusion assessment?
It improves clinical results, eliminates guesswork, and enhances patient comfort.
How are molar relationships classified in occlusion?
As Class I, II, or III based on the mesio-distal relationship of the first molars.
How is canine relationship classified in occlusion?
Class I, II, or III depending on the position of the maxillary canine relative to the mandibular teeth.
What are the divisions of incisor relationships?
Class I, Class II Division 1 (proclination), Class II Division 2 (retroclination), and Class III.
What are centric occlusal interferences?
Premature contacts that occur when the teeth are in centric occlusion.
What are working occlusal interferences?
Contacts that occur on the working side during lateral movements.
What are non-working occlusal interferences?
Contacts that occur on the non-working side during lateral movements.
What are protrusive occlusal interferences?
Premature contacts that occur during forward movement of the mandible.
What is occlusal splint therapy?
A treatment involving a removable appliance to stabilize the occlusion and reduce symptoms.
What are the forces acting on restored teeth?
Compression, tension, shear, and flexion, each impacting the longevity of the restoration.
How does compression affect a restoration?
It pushes against the restoration, influencing its stability and durability.
What is the role of muscle activity in occlusion?
Muscle activity determines tooth contacts and the overall function of the occlusal system.
How does occlusal disharmony affect jaw function?
It can lead to TMJ disorders, discomfort, and compromised chewing ability.
What are common signs of occlusal wear on teeth?
Wear facets, sensitivity to thermal changes, and chipping of enamel.
What factors contribute to periodontal affection in relation to occlusion?
Misalignment of teeth, excessive occlusal forces, and lack of proper tooth contacts.
How can occlusal discrepancies affect dental restorations?
They can lead to premature failure or fracture of restorations due to uneven force distribution.
What is the relationship between occlusion and dental aesthetics?
Proper occlusion ensures that teeth are aligned and positioned correctly, enhancing aesthetics.
What is the significance of occlusal stops?
They provide stable points of contact that support the occlusion during function.
What is the function of supporting and gliding cusps?
Supporting cusps stabilize occlusion, while gliding cusps facilitate smooth movements during chewing.
How does anterior guidance influence occlusion?
It directs the movement of the mandible and prevents interferences during functional excursions.
What is the importance of the canine in occlusion?
Canines play a crucial role in guiding the occlusion during lateral movements and preventing wear on posterior teeth.
What are the effects of uneven wear on occlusal surfaces?
It can lead to malocclusion, instability, and discomfort for the patient.
What role do articulation marks play in occlusion analysis?
They help identify contact points, interferences, and the overall occlusal relationship between teeth.
How does the position of the condyle affect occlusion?
The condylar position influences the relationship between the maxilla and mandible during occlusion.
What is the impact of patient age on occlusion?
Aging can lead to changes in tooth wear, periodontal health, and muscle function, affecting occlusal stability.
How do parafunctional habits influence occlusion?
They can cause excessive wear and lead to occlusal discrepancies and TMJ disorders.
What are the clinical signs indicating the need for occlusal adjustment?
Symptoms like pain on biting, sensitivity, and muscle soreness.
What is the purpose of a bite registration in occlusal assessment?
It captures the occlusal relationships and is used for constructing accurate dental restorations.
How does the anterior-posterior relationship of teeth affect occlusion?
It influences the functional movement of the jaw and overall stability of the occlusal scheme.
