ABSTRACT
The first permanent teeth that emerge in the oral cavity are the maxillary and mandibular first molars at around six years of age. Early loss of the lower first molar or non-anatomically restored lower first molar due to caries can cause extrusion of the upper first molar. A 19-year-old female patient came with a chief complaint of relapsed teeth after 6 years ago of orthodontic treatment. Examination of the patient revealed a convex facial profile, mild crowding of anterior teeth, normal overbite, and overjet, extraction of the first premolars, and extrusion of the first upper molars. Cephalometric examination showed Class I relationship (SNA 83°, SNB 80°, ANB 3°), as well as an inclination of the upper and lower incisors (U1-L1 120°, U1-SN 110°, L1-MP 98°). Nowadays, TAD is the most common method for intruding the extruded upper molars. In this case, the patient refused to use TAD because of economic issues. One of the conventional orthodontic methods by using a double L-Loop was used to intrude the upper first molars. Double L-Loop was used to intrude the upper first molar after alignment of the anterior teeth. Progress showed the upper molars were intruded 2 mm within 3 months. The treatment of this case is still going on. In conclusion, intrusion using the conventional method of double L-Loop was effective in this case.
