Orthodontic treatment time in 2- and 4-premolar-extraction protocols
Introduction: The purpose of this study was to compare the treatment times of complete Class II malocclusions treated with 2- and 4-premolar-extraction protocols. Methods: Ninety-seven patients were selected and divided into 2 groups, according to the 2 extraction criteria. Group 1, treated with 2 m...
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| Veröffentlicht in: | American journal of orthodontics and dentofacial orthopedics 2006-05, Vol.129 (5), p.666-671 |
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| container_title | American journal of orthodontics and dentofacial orthopedics |
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| creator | Janson, Guilherme Maria, Fábio Rogério Torres Barros, Sérgio Estelita Cavalcante de Freitas, Marcos Roberto Henriques, José Fernando Castanha |
| description | Introduction: The purpose of this study was to compare the treatment times of complete Class II malocclusions treated with 2- and 4-premolar-extraction protocols.
Methods: Ninety-seven patients were selected and divided into 2 groups, according to the 2 extraction criteria. Group 1, treated with 2 maxillary premolar extractions, consisted of 49 patients (30 male, 19 female) with a mean age of 14.35 years. Group 2, treated with 4 premolar extractions, consisted of 48 patients (27 male, 21 female) with a mean age of 13.03 years. Treatment times of the groups were compared with the
t test.
Results: Treatment times were significantly shorter with the 2-premolar-extraction protocol compared with the 4-premolar-extraction protocol.
Conclusions: Treatment time will be shorter and the occlusal results more predictable with a 2-premolar-extraction protocol compared with 4 premolar extractions. |
| doi_str_mv | 10.1016/j.ajodo.2005.12.026 |
| format | Article |
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Methods: Ninety-seven patients were selected and divided into 2 groups, according to the 2 extraction criteria. Group 1, treated with 2 maxillary premolar extractions, consisted of 49 patients (30 male, 19 female) with a mean age of 14.35 years. Group 2, treated with 4 premolar extractions, consisted of 48 patients (27 male, 21 female) with a mean age of 13.03 years. Treatment times of the groups were compared with the
t test.
Results: Treatment times were significantly shorter with the 2-premolar-extraction protocol compared with the 4-premolar-extraction protocol.
Conclusions: Treatment time will be shorter and the occlusal results more predictable with a 2-premolar-extraction protocol compared with 4 premolar extractions.</description><identifier>ISSN: 0889-5406</identifier><identifier>EISSN: 1097-6752</identifier><identifier>DOI: 10.1016/j.ajodo.2005.12.026</identifier><identifier>PMID: 16679207</identifier><language>eng</language><publisher>United States: Mosby, Inc</publisher><subject>Adolescent ; Bicuspid - surgery ; Dentistry ; Episode of Care ; Female ; Humans ; Male ; Malocclusion, Angle Class II - therapy ; Orthodontic Wires ; Orthodontics, Corrective - instrumentation ; Orthodontics, Corrective - methods ; Retrospective Studies ; Time Factors ; Tooth Extraction</subject><ispartof>American journal of orthodontics and dentofacial orthopedics, 2006-05, Vol.129 (5), p.666-671</ispartof><rights>2006 American Association of Orthodontists</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c357t-193e5d79ff7dfed0b8d32c399d3da9faf4f09b0ead83f7bdf907254bae46ec5d3</citedby><cites>FETCH-LOGICAL-c357t-193e5d79ff7dfed0b8d32c399d3da9faf4f09b0ead83f7bdf907254bae46ec5d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0889540606000126$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16679207$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Janson, Guilherme</creatorcontrib><creatorcontrib>Maria, Fábio Rogério Torres</creatorcontrib><creatorcontrib>Barros, Sérgio Estelita Cavalcante</creatorcontrib><creatorcontrib>de Freitas, Marcos Roberto</creatorcontrib><creatorcontrib>Henriques, José Fernando Castanha</creatorcontrib><title>Orthodontic treatment time in 2- and 4-premolar-extraction protocols</title><title>American journal of orthodontics and dentofacial orthopedics</title><addtitle>Am J Orthod Dentofacial Orthop</addtitle><description>Introduction: The purpose of this study was to compare the treatment times of complete Class II malocclusions treated with 2- and 4-premolar-extraction protocols.
Methods: Ninety-seven patients were selected and divided into 2 groups, according to the 2 extraction criteria. Group 1, treated with 2 maxillary premolar extractions, consisted of 49 patients (30 male, 19 female) with a mean age of 14.35 years. Group 2, treated with 4 premolar extractions, consisted of 48 patients (27 male, 21 female) with a mean age of 13.03 years. Treatment times of the groups were compared with the
t test.
Results: Treatment times were significantly shorter with the 2-premolar-extraction protocol compared with the 4-premolar-extraction protocol.
Conclusions: Treatment time will be shorter and the occlusal results more predictable with a 2-premolar-extraction protocol compared with 4 premolar extractions.</description><subject>Adolescent</subject><subject>Bicuspid - surgery</subject><subject>Dentistry</subject><subject>Episode of Care</subject><subject>Female</subject><subject>Humans</subject><subject>Male</subject><subject>Malocclusion, Angle Class II - therapy</subject><subject>Orthodontic Wires</subject><subject>Orthodontics, Corrective - instrumentation</subject><subject>Orthodontics, Corrective - methods</subject><subject>Retrospective Studies</subject><subject>Time Factors</subject><subject>Tooth Extraction</subject><issn>0889-5406</issn><issn>1097-6752</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kDtPwzAUhS0EoqXwC5BQJraEa-fhemBA5SlV6gKz5djXwlUSF9tF8O9JaSU2prt89xydj5BLCgUF2tysC7X2xhcMoC4oK4A1R2RKQfC84TU7JlOYz0VeV9BMyFmMawAQFYNTMqFNwwUDPiX3q5Dex5QhOZ2lgCr1OKQsuR4zN2Qsz9RgsirfBOx9p0KOXykonZwfsk3wyWvfxXNyYlUX8eJwZ-Tt8eF18ZwvV08vi7tlrsuap5yKEmvDhbXcWDTQzk3JdCmEKY0SVtnKgmgBlZmXlrfGCuCsrlqFVYO6NuWMXO9zx-aPLcYkexc1dp0a0G-jHEdVjDdiBMs9qIOPMaCVm-B6Fb4lBbmTJ9fyV57cyZOUyVHe-HV1iN-2PZq_n4OtEbjdAziO_HQYZNQOB43GBdRJGu_-LfgBiiWCkw</recordid><startdate>20060501</startdate><enddate>20060501</enddate><creator>Janson, Guilherme</creator><creator>Maria, Fábio Rogério Torres</creator><creator>Barros, Sérgio Estelita Cavalcante</creator><creator>de Freitas, Marcos Roberto</creator><creator>Henriques, José Fernando Castanha</creator><general>Mosby, Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20060501</creationdate><title>Orthodontic treatment time in 2- and 4-premolar-extraction protocols</title><author>Janson, Guilherme ; Maria, Fábio Rogério Torres ; Barros, Sérgio Estelita Cavalcante ; de Freitas, Marcos Roberto ; Henriques, José Fernando Castanha</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c357t-193e5d79ff7dfed0b8d32c399d3da9faf4f09b0ead83f7bdf907254bae46ec5d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Adolescent</topic><topic>Bicuspid - surgery</topic><topic>Dentistry</topic><topic>Episode of Care</topic><topic>Female</topic><topic>Humans</topic><topic>Male</topic><topic>Malocclusion, Angle Class II - therapy</topic><topic>Orthodontic Wires</topic><topic>Orthodontics, Corrective - instrumentation</topic><topic>Orthodontics, Corrective - methods</topic><topic>Retrospective Studies</topic><topic>Time Factors</topic><topic>Tooth Extraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Janson, Guilherme</creatorcontrib><creatorcontrib>Maria, Fábio Rogério Torres</creatorcontrib><creatorcontrib>Barros, Sérgio Estelita Cavalcante</creatorcontrib><creatorcontrib>de Freitas, Marcos Roberto</creatorcontrib><creatorcontrib>Henriques, José Fernando Castanha</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>American journal of orthodontics and dentofacial orthopedics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Janson, Guilherme</au><au>Maria, Fábio Rogério Torres</au><au>Barros, Sérgio Estelita Cavalcante</au><au>de Freitas, Marcos Roberto</au><au>Henriques, José Fernando Castanha</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Orthodontic treatment time in 2- and 4-premolar-extraction protocols</atitle><jtitle>American journal of orthodontics and dentofacial orthopedics</jtitle><addtitle>Am J Orthod Dentofacial Orthop</addtitle><date>2006-05-01</date><risdate>2006</risdate><volume>129</volume><issue>5</issue><spage>666</spage><epage>671</epage><pages>666-671</pages><issn>0889-5406</issn><eissn>1097-6752</eissn><abstract>Introduction: The purpose of this study was to compare the treatment times of complete Class II malocclusions treated with 2- and 4-premolar-extraction protocols.
Methods: Ninety-seven patients were selected and divided into 2 groups, according to the 2 extraction criteria. Group 1, treated with 2 maxillary premolar extractions, consisted of 49 patients (30 male, 19 female) with a mean age of 14.35 years. Group 2, treated with 4 premolar extractions, consisted of 48 patients (27 male, 21 female) with a mean age of 13.03 years. Treatment times of the groups were compared with the
t test.
Results: Treatment times were significantly shorter with the 2-premolar-extraction protocol compared with the 4-premolar-extraction protocol.
Conclusions: Treatment time will be shorter and the occlusal results more predictable with a 2-premolar-extraction protocol compared with 4 premolar extractions.</abstract><cop>United States</cop><pub>Mosby, Inc</pub><pmid>16679207</pmid><doi>10.1016/j.ajodo.2005.12.026</doi><tpages>6</tpages></addata></record> |
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| ispartof | American journal of orthodontics and dentofacial orthopedics, 2006-05, Vol.129 (5), p.666-671 |
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| source | MEDLINE; Elsevier ScienceDirect Journals |
| subjects | Adolescent Bicuspid - surgery Dentistry Episode of Care Female Humans Male Malocclusion, Angle Class II - therapy Orthodontic Wires Orthodontics, Corrective - instrumentation Orthodontics, Corrective - methods Retrospective Studies Time Factors Tooth Extraction |
| title | Orthodontic treatment time in 2- and 4-premolar-extraction protocols |
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