Factors associated with the eruption of the impacted maxillary third molars after second molar extraction

Kato, Chiho; Watari, Ippei; Aida, Jun; Ono, Takashi

doi:10.1016/j.ajodo.2021.05.018

Cited by 3 publications

(2 citation statements)

References 34 publications

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“…This may be closely related to the smaller size of the second molar compared to the first molar which reduces cortical bone anchorage and facilitates second molar protraction. One interesting phenomenon is the spontaneous partial uprighting rather than further mesial tilting of the third molar; this is similar to the spontaneous eruption of the third molar after second molar extraction [15]. Such uprighting may be closely related to the existence of interseptal periodontal fibers between second and third molars that exert evenly distributed gentle forces along the root of the third molars [16,17].…”

Section: Treatment Resultsmentioning

confidence: 88%

Uprighting horizontally impacted third molars by super-elastic nickel-titanium wire in patients with an extracted first molar

2024

JOCPD

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Protracting lower second molars and uprighting horizontally impacted third molars is a significant orthodontic challenge in patients who require the extraction of severely decayed first molars. Here, we describe the use of biomechanics to upright 90 • -tilted lower third molars following second molar protraction. Herein, we introduce a technique for uprighting the lower third molars by (1) the placement of superelastic nickel titanium archwires, (2) bonding, and (3) repositioning of a buccal tube in a tilted position to compensate for the efficiency of Ni-Ti (nickel-titanium) wire. The treatment mechanics used for our two cases showed that even severely impacted third molars can be uprighted by routine continuous straight-wire techniques. This technique proved to be a simple, efficient and reliable treatment option for uprighting horizontally impacted third molars.

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Section: Treatment Resultsmentioning

confidence: 88%

Uprighting horizontally impacted third molars by super-elastic nickel-titanium wire in patients with an extracted first molar

2024

JOCPD

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“…For clinical use, one point was assigned for each factor associated with the change in PCS (i.e., 0–3 points). Afterward, they were categorized into three groups to obtain reliable estimates: 0 point, 1 point, or 2 points [ 40 ]. The observed probability was calculated for the three groups and then compared to the predicted probability based on the multivariable logistic regression model.…”

Section: Methodsmentioning

confidence: 99%

Does Orthodontic Treatment Change the Preferred Chewing Side of Patients with Malocclusion?

Arai

Kato

Watari

et al. 2022

JCM

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Whether orthodontic treatment can change the preferred chewing side (PCS) is unknown. This study examined (1) if the PCS changes after orthodontic treatment and (2) which factors contribute to this change. Two hundred fifty patients who visited the orthodontic clinic at Tokyo Medical and Dental University Hospital between 2017 and 2020 were included in the study. Mandibular kinesiograph (MKG) was taken at pre- and post-treatment, and PCS was determined. Patients who showed a change in PCS to the opposite side and those who showed no change in PCS at post-treatment were pooled into the PCS-changed and PCS-unchanged groups, respectively. The demographic, clinical, and cephalometric parameters were compared between the groups. Significant factors associated with changes in were of age < 20 years at the beginning of orthodontic treatment (odds ratio (OR), 2.00), maximum lateral mandibular movement to PCS ≥ 10.0 mm at pre-treatment (OR, 6.51), and change in occlusal canting of ≥1.0° (OR, 2.72). The predicted probability of change in PCS was 13.2%, 36.0%, and 67.5% for no factor, one factor, and two factors associated with PCS change, respectively. Orthodontic treatment may change PCS due to patient age, maximum lateral mandibular movement to PCS, and change in occlusal canting.

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The effectiveness of fractal analysis in diagnosing temporomandibular joint disorders: a systematic review of clinical studies

Kumar,

Nagi,

Chacko

et al. 2024

Oral Radiol

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Factors associated with the eruption of the impacted maxillary third molars after second molar extraction

Cited by 3 publications

References 34 publications

Uprighting horizontally impacted third molars by super-elastic nickel-titanium wire in patients with an extracted first molar

Uprighting horizontally impacted third molars by super-elastic nickel-titanium wire in patients with an extracted first molar

Does Orthodontic Treatment Change the Preferred Chewing Side of Patients with Malocclusion?

The effectiveness of fractal analysis in diagnosing temporomandibular joint disorders: a systematic review of clinical studies

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