Restoration of a vertical alveolar bone defect by orthodontic relocation of a mesially impacted mandibular first molar

Kim, Sung Jin; Kim, Jin Wook; Choi, Tae Hyun; Lee, Kee Joon

doi:10.1016/j.ajodo.2014.04.026

Cited by 10 publications

(11 citation statements)

References 37 publications

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“…Several orthodontic treatments with segmental mechanics, such as the use of diverse spring designs and cantilever, can prevent side effects involving anchorage teeth. 15 Alternatively, placement of the wire requires adequate depth in the buccal vestibular area, such that the patient may experience discomfort. Moreover, the segmental mechanics are complicated; thus, the oral hygiene of the adjacent molar is negatively affected.…”

Section: Discussionmentioning

confidence: 99%

“…14 Orthodontic modalities using the cantilever, diverse spring designs, and temporary anchorage devices have been proposed to guide the eruption of impacted mandibular second molars. 15 Alignment using the cantilever and spring designs is uncomfortable and unhygienic; thus, these approaches may increase the risk of caries and periodontal disease. When using miniscrews for alignment, screws can be implanted in the retromolar region, enabling the distal movement of the second molar after extraction of third molars.…”

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confidence: 99%

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Correction of bilateral heavily impacted second molar with improved super-elastic nickel-titanium alloy wires

Okihara

Ono

2020

American Journal of Orthodontics and Dentofacial Orthopedics

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Correction of bilateral heavily impacted second molar with improved super-elastic nickel-titanium alloy wires

Okihara

Ono

2020

American Journal of Orthodontics and Dentofacial Orthopedics

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“…Impacted teeth are more often ankylosed in adults [43]. Once the tooth is not accessible to clinical examination, its diagnosis poses difficulties and it has been considered challenging for clinicians.…”

Section: Discussionmentioning

confidence: 99%

Diagnosis and Treatment Planning for Primary Molar Ankylosis along with Un-erupted Maxillary Premolar: Case Report

Cappellette¹,

Rm²,

Aka³

et al. 2017

Surgery

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Journal of Surgery Keywords:Submerged deciduous teeth; Dental ankyloses; Ectopic eruption IntroductionA favorable sequence of tooth eruption can be broken by a disturbance in the mixed dentition period leading to permanent tooth impaction [1]. Studies have related that the prevalence of impacted or unerupted premolars rank third in frequency after third molars and maxillary canines [2,3]. The prevalence of impacted premolars has been varied according to age [3,4]. The overall prevalence in adults has been reported to be 0.5% with a range is 0.1% to 0.3% for maxillary premolars and 0.2% to 0.3% for mandibular premolars [3,5].Tooth impaction refers to tooth that fail to erupt [5][6][7] whose etiological factors may involve arch length deficiency, mechanical blockage, ectopic positioning, malformed teeth, trauma, systemic diseases, and overretention of primary teeth or ankylosed primary teeth [2,8].Dentoalveolar ankylosis is an eruption anomaly defined as the union of the tooth root to the surrounding bone [2,[8][9][10][11][12][13][14][15] with local elimination of the periodontal ligament and it may impede the normal development of teeth [14,16]. The affected teeth are usually deciduous molars with the condition affecting the mandibular second molar most often and the maxillary first molar least often [17]. The etiology of this condition is still not well-defined [6,11,14,[17][18][19][20][21] and there is a debate due to the lack of knowledge about its biological mechanisms [22]. It is associated with trauma, metabolic disorders [9,23], developmental disturbance [24], genetic tendency [8], and a deficiency in vertical-bone growth [10]. A higher incidence occurs at the molar region during the deciduous and mixed dentition [15]. The incidence of deciduous-tooth dentoalveolar ankylosis was reported to be 1.5% to 9.9% [15].Diagnosis of dental ankylosis is generally established through clinical findings in which include metallic sounds upon percussion, lack of tooth AbstractBackground: Dentoalveolar ankyloses of the deciduous tooth may lead to collapse of the dental arch complicating eruption and development of the succedaneous permanent dentition. The early interceptive orthodontic treatment is recommended to avoid complications on the eruptive process of the successor tooth.Objective: The aim of this article is to report the orthodontic treatment of a patient with dentoalveolar ankylosis of the deciduous upper molar and impaction of the succeeding permanent teeth. Materials and methods:A 15 year-old female patient presented with a complaint about severely intruded maxillary left second deciduous molar and inclination of the adjacent tooth. Computed tomography scam (CT) showed that the premolars were found to be ankylosed and were extracted. The extraction spaces were closed by moving the posterior teeth mesially through NiTi closed springs with miniscrew anchorage. Results:In the maxillary arch, the first molars were positioned in the place of the second premolars. The occlusal posttreatment evaluation revealed a Cl...

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“…[ 9 ], who examined 165 impacted mandibular second molars, reported most (88%) were mesially angulated, with 8% vertical, and 4% angulated distally. Mesially angulated impactions have been reported to respond better to treatment than the other types [ 10 , 11 ]. Primary retention is the cessation of eruption before emergence, without a physical barrier in the eruption path and not due to abnormal position [ 3 , 8 , 12 ].…”

Section: Definitions/terminologymentioning

confidence: 99%

“…Various types of springs, loops, and uprighting arches can be used successfully with only minor changes to the anchorage teeth [ 2 , 9 , 17 , 33 , 37 , 38 , 40 , [44] , [45] , [46] , [47] , [48] , [49] , [50] , [51] , [52] , [53] , [54] , [55] , [56] ]. For absolute anchorage, miniscrews can be used in the retromolar area, or more anteriorly between the roots of the molar and/or premolars for either direct or indirect anchorage [ 9 , 11 , 39 , 41 , [57] , [58] , [59] , [60] , [61] ]. Miniplates have similarly been reported to provide an excellent source of anchorage [ 15 , 62 ].…”

Section: Clinical Managementmentioning

confidence: 99%

The management of mesially inclined/impacted mandibular permanent second molars

Turley

2020

Journal of the World Federation of Orthodontists

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Mesially impacted mandibular second molars are a common occurrence in orthodontic practices, especially those using the lingual arch or lip bumper for alleviating anterior crowding. Horizontally impacted second molars, on the other hand, occur so infrequently that most practitioners have limited experience in treating such a patient. Because of this there is little consensus on the management of these cases. As opposed to vertically impacted molars that may be associated with ankylosis or other factors preventing eruption, the mesially angulated, horizontally impacted mandibular second molar usually has eruption potential, because its impaction is more commonly due to lack of space and/or abnormal eruption path. Hence, orthodontic uprighting shows the most promise and can commonly be done without extracting the third molar or surgically exposing the impacted second molar. Modern clinicians have at their disposal a myriad of biomechanical choices that can be used to successfully reposition these teeth and enable finishing with an optimal occlusion.

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Restoration of a vertical alveolar bone defect by orthodontic relocation of a mesially impacted mandibular first molar

Cited by 10 publications

References 37 publications

Correction of bilateral heavily impacted second molar with improved super-elastic nickel-titanium alloy wires

Correction of bilateral heavily impacted second molar with improved super-elastic nickel-titanium alloy wires

Diagnosis and Treatment Planning for Primary Molar Ankylosis along with Un-erupted Maxillary Premolar: Case Report

The management of mesially inclined/impacted mandibular permanent second molars

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