Treatment Categories Flashcards
Prevention of harmful habits which create malocclusion by remodeling alveolar bone
Preventative Orthodontics
Supervision of exfoliation OR premature extraction of primary teeth and eruption of permanent teeth
To ensure that treatment can be provided before malocclusion is established (since permanent anterior teeth are generally larger than primary, and malocclusion becomes more evident as eruption progresses)
Preventative Orthodontics
Maintaining good general dental health to prevent space loss related to caries
Preventative Orthodontics
Selective discing of primary teeth, (IPR) to allow permanent teeth to erupt into a larger space
Preventative Orthodontics
Inter-Proximal Reduction
Extraction of over-retained primary teeth which could obstruct the normal eruption of their permanent successors
Preventative Orthodontics
Maintaining space for permanent teeth in the event of premature loss of primary teeth
Preventative Orthodontics
- recommendations of treatment by the dentist to _______ the onset of malocclusion
- ________ to minimize the severity of a malocclusion which is developing
- Actively eliminates malocclusion, primarily through the use of a fixed and/or removable orthopaedic and/or orthodontic appliances, may be used in combination
- Preventative Orthodontics
- Interceptive Orthodontics
- Corrective Orthodontics
Removal of supernumerary teeth which are causing malalignment of adjacent teeth
Interceptive Orthodontics
Elimination of established harmful habits if possible
Interceptive Orthodontics
ex: thumb sucking, tongue thrust, mouth breathing
Selective extraction of primary or permanent teeth to alter eruption pattern and improve predicted alignment (serial extraction)
Interceptive Orthodontics
Recommendations regarding over- or under- contoured restorations
Interceptive Orthodontics
Cross bite correction or occlusal equilibration to normalize occlusal function and possible reduce the potential for development of facial asymmetry
Interceptive Orthodontics
Space regaining to provide teeth which have yet to erupt, sufficient space to erupt
Interceptive Orthodontics
Corrective Orthodontics (3)
1-extraction of teeth or stripping (recontouring interproximal enamel [IPR] of permanent teeth
2-orthognathic surgery
3-prosthodontic replacement of missing teeth or size modification of existing teeth
Refers to the movement of teeth
Orthodontic
Refers to the movement of bone by application of pressure
Orthopaedic
Refers to the surgical movement of bone
Orthognathic
Refers to the elimination or modification of abnormal perioral muscle function
Myofunctional
Refers to treatment which addresses patient psyche (motivation to cooperate with oral hygiene practices/control of certain habits
Psychological
Involves observation and adjustment of an appliance which is producing orthodontic/orthopaedic force
Active Treatment
Involves observation of a patient and possible management of an appliance which maintains the status quo rather than exerting force
Passive Treatment
Orthodontic Force produces movement in 2 phases
1 the tooth moves due to the elasticity of the periodontal ligament and deflection of non rigid alveolar bone just below the crown of the tooth
2 the tooth moves in conjunction with remodeling of the alveolar bone
5 mechanics/steps of alveolar bone remodeling in response to orthodontic force
1a force pushes the tooth toward one side of the alveolar (compressing the periodontal ligament on that side)
2the tooth is pulled away from the opposite side of the alveolus (stretching the periodontal ligament on that side
3side where tooth moves, compression stimulates osteoclasts to resorb bone and make space for tooth to move
4side where tooth is moving from tension stimulates osteoblasts to produce bone to fill in the gap
5ultimately, the alveolus bone maintains its original size, but the entire alveolus has been displaced the allow relocation of the tooth
Orthodontic forces do not produce tooth movement in isolation
True or False
True. Some of the periodontal ligament fibers run mesiodistally from tooth to tooth, linking the teeth together
Even teeth which are not connected by periodontal ligaments will be affected if they are in contact with the same appliance due to reciprocal force [force of corresponding magnitude but opposite direction like an elastic band stretched between your fingers]
Orthopaedic forces are stronger than orthodontic forces
True or False
Influence _____ ______ and/or _____ ______ rather than just alveolar bone
True
Facial sutures and/or mandibular condyles
The left and right halves of the maxilla meet at a ______
A joint consisting of dense fibers and small bony interdigitations
Suture
As a patient gets older the fibers at the maxillary suture are replaced with ______
Bone
Until mid-to-late teens palatial expansion force for the correction of a posterior cross bite will
- tear ____
- fracture ____
- separate _____
- Tear (internally) the fibers between the two halves of the maxilla
- Fracture the small bony interdigitations of the suture
- Separate the bones of the two halves of the maxilla through disruption of the mid-palatal suture and pressure against other maxillary sutures
In class 2 patients with a protrusive maxilla _________ or______ headgear may be used to retreat the maxilla, maxillary Teeth, or restrain maxillary forward growth
Occipital (high-pull) or Cervical (low-pull)
In class 3 patients with a restrusive maxillary ______ (also known as reverse-pull headgear or facemask) attempts orthopaedic maxillary _____
Protraction head gear
Protraction
Physiologically maxillary retraction or protraction affects growth at the _____ through _____ directed force
At the sutures
Anteroposteriorly
In open bite patients orthopaedic force can be directed toward the ——— or the mandible
Occipital head gear force against maxillary molars may ____ the _____ maxillary teeth to assist with bite closure
Chin cup force against the anterior part of the _______ restrains _____ growth of the ______ by restricting _______ growth of the teeth
HEADGEAR
Maxilla
Intrude the posterior maxillary
Mandible restrains vertical growth of the mandible by restricting vertical growth of the teeth
