What is monoplane occlusion?
Monoplane occlusion involves having non-anatomic denture teeth with a 0˚ incisal guidance angle, arranged on a flat occlusal plane. As a consequence, when patients with monoplane occlusion occlude anteriorly, an interocclusal gap appears posteriorly.
What is J CTO score?
9–11 The multicenter Japanese CTO Registry12 investigators developed the J-CTO score as a scoring system to grade the difficulty in crossing a CTO within 30 min- utes and overall success rate.
What are the 3 classes of occlusion?
Classification of the bite (occlusion) is divided into three main categories: Class I, II and III. This classification refers to the position of the first molars and the way in which the upper ones fit together with the lower ones.
What is an occlusion?
An occlusion is a complete or partial blockage of a blood vessel. While occlusions can happen in both veins and arteries, the more serious ones occur in the arteries. An occlusion can reduce or even stop the flow of oxygen-rich blood to downstream vital tissues like the heart, brain, or extremities.
What is Neurocentric occlusion?
Neurocentric occlusion [11,14,15] That concept has been established by DE VAN in 1954. It is characterized by posterior teeth presenting flat planes in all directions with no medial or lateral inclination.
When do we use monoplane occlusion?
Monoplane posterior teeth are generally used in bruxers, and patients with arch discrepancies, poor neuromuscular control and with poor residual ridges. This program describes the arrangement of monoplane posterior teeth to achieve bilateral balanced occlusion.
Why is centric occlusion normal?
The reason centric relation is so important is because it is the highest possible position of the condyle- disc assemblies that is achieved by coordinated muscle activity when the jaw is closed. At this uppermost position, the jaw joints are seated firmly against a bony stop so they cannot go higher.
What is dynamic occlusion?
Dynamic occlusion is the study of the contacts that teeth make when the mandible is moving – contacts when the jaw moves sideways, forwards, backwards, or at an angle. The contacts are not points, they are lines.
What is the dynamic concept of occlusion?
The dynamic concept of occlusion is primarily concerned with opening and closing movements involved in mastication. Jaw movements and tooth contacts are made, as the teeth of one jaw glide over the teeth of the opposing jaw. Movements of the mandible which occur when the teeth are not in contact are termed as free movements.
What is dynamic occlusion of the canine teeth?
Dynamic occlusion that occurs on the canines (on the working side) during lateral excursions of the mandible. Multiple contacts between the maxillary and mandibular teeth in lateral movements on the WS whereby simultaneous contact of several teeth acts as a group to distribute occlusal forces.
What is occlusion in dentistry?
Occlusion is defined as the act of opening and closing, while in dentistry its definition is broader and includes the contact of the teeth in the functional and parafunctional movements.
What is a balanced occlusion?
This concept of occlusion is based on the efforts of Curve of Spee and Monson’s spherical theory and is known also as “fully balanced occlusion” or “bilateral balanced occlusion.”. This occlusion concept requires that all the teeth be in contact during both maximum intercuspation and eccentric mandibular movements.