Sagittal changes in lower incisors by the use of lingual arch

Letti, Helen Carolina Becker; Rizzatto, Susana Maria Deon; Menezes, Luciane Macedo de; Reale, Chalana Sangalli; Lima, Eduardo Martinelli de; Martinelli, Fernando Lima

doi:10.1590/s2176-94512013000300006

Cited by 7 publications

(3 citation statements)

References 16 publications

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“…15 These appliances are especially useful when there is bilateral loss of multiple primary teeth. There is a risk of impeded eruption or proclination of the lower labial segment associated with the use of a lower lingual arch 16 and therefore should not be used prior to eruption the permanent incisor teeth.…”

Section: Early Loss Of Second Primary Molarsmentioning

confidence: 99%

Space maintainers in the primary and mixed dentition – a clinical guide

et al. 2018

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Section: Early Loss Of Second Primary Molarsmentioning

confidence: 99%

Space maintainers in the primary and mixed dentition – a clinical guide

et al. 2018

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“…For instance, in cases with mixed dentition and crowded lower incisors, lingual arch to leeway space preservation should be maintained until LPm2 eruption and crowding dissipation. If rationally postponed, the appliance stays a shorter period in the oral environment, 3 reducing possible side effects, such as lower incisor proclination, 18 plaque retention, and cytotoxicity related to the silver-soldered joints. 19 In another example, a suitable waiting strategy prior to bonding full fixed appliances avoids longer treatment periods.…”

Section: Discussionmentioning

confidence: 99%

Eruption rates of lower second premolars at different development stages evaluated with cone-beam computed tomography

Rinaldi

Lima

Menezes

et al. 2016

The Angle Orthodontist

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Objective: To evaluate and compare the eruption rates of lower second premolars (LPm2) at different developmental stages using cone-beam computed tomography (CBCT). Materials and Methods: Retrospectively, 31 individuals (9.77 6 1.25 years) had their LPm2 scored according to the Demirjian method, and afterwards they were split into three groups according to developmental stage, as follows: D ¼ complete-formed crowns; E ¼ root length less than crown height; and F ¼ root length greater than or equal to crown height. Linear distances from the LPm2 crown tip to the anatomical reference line (ARL) and to the occlusal plane line (OPL) were measured in paired CBCT scans (T1, T2), taken with an average interval of 8.6 months between them. Eruption rates (mm/y) were calculated and then compared between groups. Results: Eruption rates were greater for LPm2 at stage F than at stages D or E (P , .01) regardless of whether they were measured from the ARL (D ¼ 2.84 mm/y; E ¼ 2.55 mm/y; F ¼ 5.38 mm/y) or from the OPL (D ¼ 1.82 mm/y; E ¼ 2.02 mm/y; F ¼ 5.26 mm/y). Eruption rates evaluated from the ARL and the OPL had no statistically significant differences (P ¼ .052), and a positive correlation (r ¼ .79, P , .001) between them was observed. Conclusions: LPm2 at Demirjian stage F showed greater eruption rates than at stages D or E, regardless of whether rates were measured from the ARL or the OPL. Faster eruption is expected for LPm2 at stage F. Evaluation of the LPm2's developmental stage using CBCT can aid in clinical decision making regarding the correct timing for intervention. (Angle Orthod. 2017;87:570-575)

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“…[ 1 ] The LA prevents the mesial migration of the mandibular first molars (M1),[ 2 ] sometimes resulting in incisor proclination. [ 3 ] Lip bumpers (LBs) are generally indicated for the treatment of mild-to-moderate tooth size-arch length discrepancy during the mixed dentition. [ 4 ] They function by increasing arch width (in premolar and molar areas) and arch depth (by the proclination of incisors and distal tipping of M1) of the lower arch.…”

Section: Introductionmentioning

confidence: 99%