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ISSN 1025-0255 (Electronic)

2022, Number 1

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AMC 2022; 26 (1)

Utilization of the modified Nance button for mandibular propulsion

Verano-Luis L, de la Rosa-Cabrera Y, Pérez-García LM, Jiménez-Marín O

Language: Spanish
References: 19
Page:
PDF size: 732.61 Kb.


ABSTRACT

Introduction: In the beginning, most of the functional appliances were removable, but the fixed ones are increasing every day. Their combination can increase the effectiveness in the treatment of mandibular retrognathymus.
Objective: To present the results of the treatment of a patient with mandibular retrognathism treated with the modified Nance button.
Case report: A 13-year-old female patient with convex profile, neuromuscular dysfunction, permanent dentition in both jaws with the presence of slight anterior crowding, bilateral distoclusion molar ratio of ½ unit, incisor protrusion and overhang of 6 mm, poor intermaxillary relationship caused by retrognathism of the mandible and little remnant of active mandibular growth. The first stage of treatment included psychotherapy, myotherapy and mandibular advancement with a fixed functional appliance (modified Nance button for mandibular propulsion). Nine months after starting the treatment, the change in the intermaxillary relationships in the anteroposterior direction was verified, with a decrease in the ANB angle to 20 and an increase in the SNB to 78, as a reflection of a good relationship of the bone bases due to mandibular growth.
Conclusions: One year after treatment with the modified Nance button for mandibular propulsion, a correct relationship of the patient's bone bases was achieved.


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