Monograph Flashcards
The general arrangement of the arches and the inclination of the individual teeth are related in such a manner as to allow the___ ____ ____ of _____, while at the same time _____ and ____ the dental arches.
The general arrangement of the arches and the inclination of the individual teeth are related in such a manner as to allow the most efficient use of the forces of mastication, while at the same time stabilizing and protecting the dental arches.
The curve of Spee and the curve of Wilson are necessary for the forces of mastication to be ___ ___ __ ___ ____ of individual teeth. These curves are determined by ___ ___ and affected by individual ____ effects of the ___ ___ ___
The curve of Spee and the curve of Wilson are necessary for the forces of mastication to be directed along the long axes of individual teeth. These curves are determined by genetic factors and affected by individual neuromuscular effects of the tongue, lips, and cheeks.
The maxilla is somewhat____ than the mandible and this discrepancy in width increases _____.
In order that the teeth can meet, it is necessary for the upper molars to lean ____while the lower molars lean ___.
As the width discrepancy increases, the angulation of the individual teeth ____.
The premolars are the teeth whose long axes approximate a ____ ____ ____.
The maxillary and mandibular incisors have a ____ protrusion and when viewed from the frontal, their crowns incline ____.
The mandibular incisal edges approximate the ____ of the ____ ____.
The maxilla is somewhat narrower than the mandible and this discrepancy in width increases posteriorly. In order that the teeth can meet, it is necessary for the upper molars to lean buccally while the lower molars lean lingually.
As the width discrepancy increases, the angulation of the individual teeth increases.
The premolars are the teeth whose long axes approximate a true vertical orientation.
The maxillary and mandibular incisors have a labial protrusion and when viewed from the frontal, their crowns incline laterally.
The mandibular incisal edges approximate the cingula of the maxillary incisors.
Axial inclinations of the teeth in centric occlusion
The ___ ___ are approximately perpendicular to the occlusal plane.
____ are the teeth which are normally least perpendicular to the plane of occlusion.
The___ which occur during ___ are normally directed along these axes
Axial inclinations of the teeth in centric occlusion
The long axes are approximately perpendicular to the occlusal plane.
Incisors are the teeth which are normally least perpendicular to the plane of occlusion.
The forces which occur during function are normally directed along these axes
Proximal Ridge
On the proximal surfaces of posterior teeth, a proximal ridge extends from each ___ _____ line angle to each ___ ____ line angle.
These ridges occur in the ____ half to one third of the proximal surfaces of the crown.
On the proximal surfaces of posterior teeth, a proximal ridge extends from each buccoproximal line angle to each Iinguo-proximal line angle. These ridges occur in the occlusal half to one third of the proximal surfaces of the crown.
Contact Point. Contact Area
Anterior Teeth
From an incisal view, anterior teeth have contact areas _____ in the labiolingual dimension.
From a facial view, the contact areas of the anterior teeth are located close to the ____third of the teeth.
The one exception.is the ___ contact area of the _____ ____, which is in the ____ third of the crown.
From an incisal view, anterior teeth have contact areas centered in the labiolingual dimension.
From a facial view, the contact areas of the anterior teeth are located close to the incisal third of the teeth. The one exception.is the distal contact area of the maxillary canine, which is in the middle third of the crown.
Contact Point. Contact Area
Posterior Teeth
a. From the occlusal view, posterior teeth have contact areas located on the___ half of the proximal ridge,
except for teeth with a ____________or _______shape. The contact areas on these teeth are located more toward the _______.
b. From the facial view, contact areas of posterior teeth move ____ ____from premolars, where they are located at the junction of ___ and _____ one-third, to the molars, where they are located in the ____ one-third.
c. Contact areas between posterior teeth in normal alignment aid in preventing ___and ___ ____
a. From the occlusal view, posterior teeth have contact areas located on the buccal half of the proximal ridge, except for teeth with a reverse facio-lingual taper or rhomboidal shape. The contact areas on these teeth are located more toward the facio-lingual center.
b. From the facial view, contact areas of posterior teeth move progressively cervical from premolars, where they are located at the junction of occlusal and middle one-third, to the molars, where they are located in the middle one-third.
c. Contact areas between posterior teeth in normal alignment aid in preventing rotation and mesial drift.
Proximal Concavities and Cervical or Gingival Embrasures
The ____ one-half of the proximal surface of the crown on a___ tooth is ____ ___-____ly. This depression extends all the way from ___ to ____and is called the ____ ____.
For two adjacent teeth, the proximal concavities contribute to the formatlon of the _____________________.
The cervical one-half of the proximal surface of the crown on a posterior tooth is concave occlusocervlcallv. This depression extends all the way from buccal to lingual and is called the proximal concavity, For two adjacent teeth, the proximal concavities contribute to the formatlon of the cervical or gingival embrasure.
Facio-lingual Taper
Facio-lingual taper can be defined as a tapering reduction in the ____ ____ of the teeth. This width reduction starts at the ___ of the proximal surfaces and extends____ This creates the ___ ____
The taper ends as the proximal surfaces blend with the ____ _______ line angles
Facio-lingual taper can be defined as a tapering reduction in the mesio-distal width of the teeth. This width reduction starts at the center of the proximal surfaces and extends lingually. This creates the lingual embrasure.
The taper ends as the proximal surfaces blend with the rounded Iinguoproximal line angles
Therefore the greatest mesio-distal width of the tooth occurs in the ____ one-half.
Thus, ____ ____ occur in this region.
On the proximal surfaces of a tooth, the ____ halves of the ____ ____ run ____ to each other.
Note: Mandibular ______ and maxillary _____ may exhibit a reverse faciolingual taper -they may be wider across the ___ half and taper ____
Therefore the greatest mesio-distal width of the tooth occurs in the buccal one-half. Thus, proximal contacts occur in this region. on the proximal surfaces of a tooth, the buccal halves of the proximal ridges run parallel to each other.
Note: Mandibular second premolars and maxillary first molars may exhibit a reverse faciolingual taper -they may be wider across the lingual half and taper buccally.
Role of Facio-lingual Taper
a. It enables the ____ of teeth in a ___ ___ from with proximal contact toward the facial and an open lingual embrasure.
b. It reduces ___ on ____ by
- reducing the ______________.
- providing ___ ___ for ____ and pathways for cusps.
c. It allows for the ____ of the gingival tissue by the passage of food through the ____ and ___ ______. This contributes to the health of the ____ ____.
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Role of Facio-lingual Taper
a. It enables the positioning of teeth in a curved arch from with proximal contact toward the facial and an open lingual embrasure.
b. It reduces loading on teeth by
reducing the size of the crowns of the teeth. t
providing flow paths for food and pathways for cusps.
c. It allows for the stimulation of the gingival tissue by the passage of food through the facial and lingual embrasures. This contributes to the health of the periodontal tissues.
