{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T16:25:56Z","timestamp":1791390356852,"version":"4.3.3"},"reference-count":20,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2006,11,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Objective: To evaluate the maxillary molar distalization and anchorage loss in two groups, one before (MD 1 group) and one after (MD 2 group) eruption of second maxillary molars.<\/jats:p>\n               <jats:p>Materials and Methods: After a sample size calculation, 20 patients were recruited for each group from patients who fulfilled the following criteria: no orthodontic treatment before distal molar movement, Class II molar relationship defined by at least end-to-end molar relationship, space deficiency in the maxilla, and use of an intra-arch NiTi coil appliance with a Nance appliance to provide anchorage. Patients in the MD 1 group were without any erupted second molars during the distalization period, whereas in the MD 2 group both the first and second molars were in occlusion at start of treatment. The main outcome measures to be assessed were: treatment time, ie, time in months to achieve a normal molar relation, distal movement of maxillary first molars, and anterior movement of maxillary incisors (anchorage loss). The mean age in the MD 1 group was 11.4 years; in the MD 2 group, 14.6 years.<\/jats:p>\n               <jats:p>Results: The amount of distal movement of the first molars was significantly greater (P &amp;lt; .01) and the anchorage loss was significantly lower (P &amp;lt; .01) in the group with no second molars erupted. The molar distalization time was also significantly shorter (P &amp;lt; .001) in this group, and thus the movement rate was two times higher.<\/jats:p>\n               <jats:p>Conclusions: It is more effective to distalize the first maxillary molars before the second molars have erupted.<\/jats:p>","DOI":"10.2319\/110805-390","type":"journal-article","created":{"date-parts":[[2007,5,9]],"date-time":"2007-05-09T17:28:10Z","timestamp":1178731690000},"page":"923-929","source":"Crossref","is-referenced-by-count":50,"title":["Intraoral Maxillary Molar Distalization"],"prefix":"10.2319","volume":"76","author":[{"given":"Ingela","family":"Karlsson","sequence":"first","affiliation":[{"name":"aConsultant, Specialist in Orthodontics, National Health Service, Skane County Council, Orthodontic Clinic, Malmoe, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lars","family":"Bondemark","sequence":"first","affiliation":[{"name":"bAssociate Professor, Faculty of Odontology, Malmoe University, Department of Orthodontics, Malmoe, Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1164","reference":[{"key":"2020042117431987300_i0003-3219-076-06-0923-b1","first-page":"661","article-title":"Rapid Class II molar correction with an open coil jig.","volume":"26","author":"Jones","year":"1992","journal-title":"J Clin Orthod"},{"key":"2020042117431987300_i0003-3219-076-06-0923-b2","first-page":"189","article-title":"Repelling magnets versus superelastic nickel-titanium coils in simultaneous distal movement of maxillary first and second molars.","volume":"64","author":"Bondemark","year":"1994","journal-title":"Angle Orthod"},{"key":"2020042117431987300_i0003-3219-076-06-0923-b3","first-page":"374","article-title":"The distal jet for upper molar distalization.","volume":"30","author":"Carano","year":"1996","journal-title":"J Clin Orthod"},{"key":"2020042117431987300_i0003-3219-076-06-0923-b4","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1016\/S0889-5406(98)70240-9","article-title":"Distal movement of the maxillary molars.","volume":"114","author":"Gianelly","year":"1998","journal-title":"Am J Orthod Dentofac Orthop"},{"key":"2020042117431987300_i0003-3219-076-06-0923-b5","doi-asserted-by":"crossref","first-page":"319","DOI":"10.1016\/S0889-5406(98)70215-X","article-title":"Dental and skeletal changes after intraoral molar distalization with sectional jig assembly.","volume":"114","author":"Gulati","year":"1998","journal-title":"Am J Orthod Dentofac Orthop"},{"key":"2020042117431987300_i0003-3219-076-06-0923-b6","doi-asserted-by":"crossref","first-page":"683","DOI":"10.1093\/ejo\/22.6.683","article-title":"A comparative analysis of distal maxillary molar movement produced by a new lingual intra-arch Ni-Ti coil appliance and a magnetic appliance.","volume":"22","author":"Bondemark","year":"2000","journal-title":"Eur J Orthod"},{"key":"2020042117431987300_i0003-3219-076-06-0923-b7","doi-asserted-by":"crossref","first-page":"238","DOI":"10.1034\/j.1600-0544.2002.01169.x","article-title":"Upper removable appliance or Jones jig for distalizing first molars? A randomized clinical trial.","volume":"5","author":"Paul","year":"2002","journal-title":"Orthod Craniofac Res"},{"key":"2020042117431987300_i0003-3219-076-06-0923-b8","doi-asserted-by":"crossref","first-page":"123","DOI":"10.1007\/s00056-004-0317-z","article-title":"Cephalometric changes following simultaneous first and second maxillary molar distalization using a non-compliance intraoral appliance.","volume":"65","author":"Papadopoulos","year":"2004","journal-title":"J Orofac Orthop"},{"key":"2020042117431987300_i0003-3219-076-06-0923-b9","first-page":"699","article-title":"Extraoral vs intraoral appliance for distal movement of maxillary first molars: a randomized controlled trial.","volume":"75","author":"Bondemark","year":"2005","journal-title":"Angle Orthod"},{"key":"2020042117431987300_i0003-3219-076-06-0923-b10","doi-asserted-by":"crossref","first-page":"127","DOI":"10.1007\/BF01317174","article-title":"Class II correction with magnets and superelastic coils followed by straight-wire mechanotherapy.","volume":"59","author":"Bondemark","year":"1998","journal-title":"J Orofac Orthop"},{"key":"2020042117431987300_i0003-3219-076-06-0923-b11","doi-asserted-by":"crossref","first-page":"8","DOI":"10.1016\/j.ajodo.2003.02.002","article-title":"Efficiency of a pendulum appliance for molar distalization related to second and third molar eruption stage.","volume":"125","author":"Kinzinger","year":"2004","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"2020042117431987300_i0003-3219-076-06-0923-b12","doi-asserted-by":"crossref","first-page":"89","DOI":"10.1016\/0889-5406(88)90356-3","article-title":"The superelastic Japanese NiTi alloy wire for use in orthodontics. 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