Permanent dentition Open bite malocclusion

-



1 permanent dentition

1.1 high-pull headgear
1.2 elastics
1.3 bite blocks
1.4 glossectomy
1.5 orthognathic surgery





permanent dentition

correction of open bite in permanent dentition may involve extrusion of anterior teeth or intrusion of posterior teeth. decision depends on incisor show on smiling patient. if patient has normal incisor show @ rest smile, molar intrusion may done in these type of faces. extrusion of anterior teeth in these patients lead excessive gummy smile in cases not desirable. if patient not have normal incisor show @ rest , smile, anterior extrusion may done in these patients.


high-pull headgear

this appliance can used patients growing , in permanent dentition. appliance has been advocated used controlling vertical dimension applying force intrude molars.


elastics

elastics have been used correct anterior dental open bite. these elastics can in configuration of triangular or anterior vertical elastics.


bite blocks

r. kuster , b. ingerval in 1992, used 2 types of bite blocks evaluate effect on skeletal open bite patients. 1 group of patients had spring-loaded bite block 1 year , other group had repelling magnets bite blocks 3 months. both type of bite blocks exerted intrusive force on both upper , lower posterior teeth. saw 3mm improvement in overbite magnet group , 1.3mm improvement in overbite spring-loaded group. concluded affect resulted due counter-clockwise rotation of mandible caused intrusion of posterior teeth , increased eruption of incisors.


glossectomy

there not systematic reviews or randomized clinical control trials related correction of open bite partial tongue glossectomy several case reports have been published indicating successful treatment of open bite surgical approach. macroglossia has been reported cause open bite , bimaxillary protrusion , known make orthodontic treatment unstable after completion.


orthognathic surgery

an orthognathic surgical approach can taken correct open bite once vertical growth has finished in male , female patients. @ time, le-fort osteotomy impact maxilla done. according proffit et al, surgical movement involves maxillary impaction stable surgical movement in hierarchy established. 2 jaw surgery can performed bilateral sagittal split osteotomy can done correct antero-posterior changes of mandible. however, 2 jaw surgery relapse leading bite opening may happen due condylar remodeling , resorption.








Comments

Post a Comment

Popular posts from this blog

Discography Neuronium

-
1 discography 1.1 albums 1.2 unnumbered titles 1.3 singles 1.4 other 1.5 online releases 1.6 upcoming works discography neuronium live in bochum (germany), 2012 albums (1977): quasar 2c361 (neuronium) (1978): vuelo quimico (neuronium) (1980): digital dream (neuronium) remastered new digital dream, new cover (1981): visitor (neuronium) remastered new visitor, new cover (1982): chromium echoes (neuronium) (1982): absence of reality (huygen) (1983): invisible views (neuronium) (1984): heritage (neuronium) (1984): capturing holograms (huygen) (1986): barcelona 1992 (huygen) (1987): supranatural (neuronium) (1988): madrid heaven (live) (neuronium) (1989): elixir (huygen) (1990): olim (neuronium) (1990): numerica (neuronium) (1990): intimo (huygen) (1991): extrisimo (neuronium, including tracks huygen s solo works) (1991): sybaris (neuronium) (1992): en busca del misterio (huygen) (1993): oniria (neuronium) (1994): infinito (huygen) (1995): música para la buena mesa (huygen) (collection of t...
Read more

Discography E-Rotic

-
1 discography 1.1 studio albums 1.2 remix albums 1.3 compilation albums 1.4 singles 1.5 promotional singles 1.6 featured singles 1.7 other appearances discography studio albums remix albums 2000: dancemania presents e-rotic megamix (27 september 2000) 2003: total recall (5 february 2003, re-released on 8 september 2011) compilation albums 1998: greatest tits – best of e-rotic 2001: best of e-rotic 2002: collection singles promotional singles featured singles other appearances 1996: champions (as part of supergroup acts united on album queen dance traxx) ^ offiziellecharts.de: e-rotic . gfk entertainment. retrieved 2016-01-27.  ^ austriancharts.at: discography e-rotic (in german). austriancharts.at. hung medien. retrieved 2013-07-20.  ^ finnishcharts.com: discography e-rotic . musiikkituottajat – ifpi finland. finnishcharts.com. retrieved 2013-07-20.  ^ oricon: e-rotic (in japanese). oricon. retrieved 2013-07-20.  ^ gfk dutch charts: e-rotic (albums)...
Read more

Deep sea mining Marine pollution

-
deep sea mining relatively new mineral retrieval process takes place on ocean floor. ocean mining sites around large areas of polymetallic nodules or active , extinct hydrothermal vents @ 1,400 – 3,700 meters below ocean s surface. vents create sulfide deposits, contain precious metals such silver, gold, copper, manganese, cobalt, , zinc. deposits mined using either hydraulic pumps or bucket systems take ore surface processed. mining operations, deep sea mining raises questions environmental damages surrounding areas because deep sea mining relatively new field, complete consequences of full-scale mining operations unknown. however, experts removal of parts of sea floor result in disturbances benthic layer, increased toxicity of water column, , sediment plumes tailings. removing parts of sea floor disturbs habitat of benthic organisms, possibly, depending on type of mining , location, causing permanent disturbances. aside direct impact of mining area, leakage, spills, , corrosion alter...
Read more