Background: Orthodontic molar uprighting often results in extrusion of the molar, which is not always beneficial. The authors present a strategy for accomplishing molar uprighting without extrusion.
Description Of The Procedure: The authors review and compare the benefits of molar uprighting with and without extrusion. The helical uprighting spring is probably the most popular appliance used for molar uprighting. It exerts an extrusive force on the molar during uprighting. The authors explain why this appliance produces an extrusive force and present a strategy to modify the appliance so that it can be used to upright without extrusion.
Clinical Implications: The information presented in this article should help the dental practitioner select a suitable appliance, understand how it works and use it appropriately so that molar uprighting can be achieved without extrusion of the molar.
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| http://dx.doi.org/10.14219/jada.archive.1999.0208 | DOI Listing |
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- * A case study details the orthodontic treatment of a 21-year-old woman with maxillomandibular protrusion and impacted mandibular second molars, using the innovative Physiologic Anchorage Spee-wire System (PASS) for effective alignment and resolution of impaction.
- * The PASS technique proved to be a simple and efficient method for correcting dental issues, showing superiority over traditional wire appliances and minimizing discomfort during treatment while achieving a well-aligned dentition.
Clinical Insights Into Lower Incisor Extraction for Orthodontic Treatment: A Case Report.
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Orthodontics and Dentofacial Orthopaedics, Nair Hospital Dental College, Mumbai, IND.
Extracting a single lower front tooth can be an appropriate treatment for class I malocclusions when the alignment of the upper teeth is normal and there is an adequate overlap of the teeth. This approach is particularly effective in cases of significant crowding in the lower front teeth, especially when the space deficiency exceeds 4-5 mm and the combined width of the lower front teeth surpasses 83 mm. It is also a viable option for malocclusions resulting from discrepancies in tooth size, such as narrower upper front teeth or larger lower front teeth.
View Article and Find Full Text PDFDistalization of Ectopically Erupted Molars Using a Modified Humphrey's Appliance.
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Department of Pediatric Dentistry, ESIC Dental College and Hospital, Rohini, New Delhi, India.
Ectopic eruption of molars occurs more frequently in developing permanent dentition, and requires immediate intervention. Herein, two cases are discussed with ectopic eruption of permanent maxillary first molars which were diagnosed and managed conservatively using a modified Humphrey's appliance, named the NR's appliance. The appliance was fabricated by band adaptation and using wire components of a 21-gauge stainless-steel wire.
View Article and Find Full Text PDFOrthodontic treatment for substitution of impacted mandibular second molars with their adjacent wisdom teeth.
J Dent Sci
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Division of Oral and Maxillofacial Surgery, Department of Dentistry, Taipei Medical University Hospital, Taipei, Taiwan.
A distinctive method for extraction of the bilateral impacted mandibular second molars (MM2s) and moving the bilateral mesioangularly impacted mandibular third molars (MM3s) to the MM2 positions with appropriate occlusion by orthodontic uprighting and protraction was demonstrated in a 24-year-old woman and a 20-year-old woman, respectively. Although the surgical procedures should be performed under general anesthesia, rapid orthodontic treatment after tooth extraction aided in the initial teeth movement of the bilateral MM3s. The proposed treatment could be implemented and completed in 2 years or less.
View Article and Find Full Text PDFEvaluating the efficiency of mandibular molar protraction using Herbst appliances versus temporary anchorage devices: a retrospective case-controlled study.
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Department of Orthodontics, School of Dentistry, University of Alabama at Birmingham, 1919 7th Avenue South, SDB 313, Birmingham, AL, 35294-0007, USA.
Background: Mandibular second premolar agenesis is a common problem in orthodontics and is often treated in conjunction with maxillary counterbalancing extractions. However, in cases without maxillary crowding or dental protrusion, space closure may pose challenges leading to compromised occlusal results or patient profile. Multiple techniques have been described to treat these patients; nevertheless, there is a paucity of data comparing effectiveness of space closure utilizing various anchorage techniques.
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