case_images: PMC5952238_01
case_images: Pretreatment photographs
case_images: JOS-7-2-g001.jpg
case_images: PMC5952238_01_JOS-7-2-g001.jpg
case_images: F1
case_images: An anterior open-bite extended from first molar to first molar [Figures 1 and 2].
case_images: Pretreatment dental casts
case_images: JOS-7-2-g002.jpg
case_images: PMC5952238_01_JOS-7-2-g002.jpg
case_images: F2
case_images: An anterior open-bite extended from first molar to first molar [Figures 1 and 2]. Only the second and third molars were in occlusal contact [Figures 2 and 3].
case_images: Pretreatment radiographs. (a) Lateral cephalometric; (b) Panoramic
case_images: JOS-7-2-g003.jpg
case_images: PMC5952238_01_JOS-7-2-g003.jpg
case_images: F3
case_images: Only the second and third molars were in occlusal contact [Figures 2 and 3].
case_images: Miniscrews placed and biomechanics employed for molar intrusion
case_images: JOS-7-2-g005.jpg
case_images: PMC5952238_01_JOS-7-2-g005.jpg
case_images: F4
case_images: Short elastic chain [3M Unitek, Monrovia, Calif, USA] was used to apply the intrusion [Figure 4] during the middle of which, the left buccal miniscrew needed to be repositioned more apically, because it approached the molars.
case_images: Open bite reduction during active phase of orthodontic treatment. (a) After 20 months of treatment (16 months of intrusion) was verified a considerably open-bite closure and the use of vertical intermaxillary elastics were initiated and; (b) Effect of vertical intermaxillary elastics after 12 months of use, closing the open bite
case_images: JOS-7-2-g006.jpg
case_images: PMC5952238_01_JOS-7-2-g006.jpg
case_images: F5
case_images: Figure 5a shows the elastic chain in the mandibular arch, and the anterior teeth tied-together in the maxillary arch to avoid reopening of the spaces. After 20 months of treatment, considerable reduction of the open-bite had occurred [Figure 5a]. At this time, 0.018-inch stainless steel arch wires were inserted in the maxillary and mandibular arches, and bilateral vertical interarch elastics were added to aid in the closure of the remaining open-bite [Figure 5b]. The vertical elastics were used 20 h/day for 12 months and the results can be observed in Figure 5b (open-bite closure).
case_images: Retainers used after active phase of orthodontic treatment. (a) Two retainers with posterior bite blocks were constructed; (b) Daytime retainer with an orifice close to the incisive papillae and; (c) Night-time retainer with a palatal crib
case_images: JOS-7-2-g007.jpg
case_images: PMC5952238_01_JOS-7-2-g007.jpg
case_images: F6
case_images: Two maxillary appliances with posterior bite blocks to retain the posterior intrusion were constructed for day and night-time use [Figure 6a]. The daytime retainer incorporated an orifice close to the incisive papillae which guided correct tongue position [Figure 6b]. The night-time retainer contained a palatal crib to prevent lingual pressure on the anterior teeth [Figure 6c].
case_images: Posttreatment photographs
case_images: JOS-7-2-g008.jpg
case_images: PMC5952238_01_JOS-7-2-g008.jpg
case_images: F7
case_images: A loop was made in the mandibular retention wire to allow subsequent restoration of the left central incisor [Figure 7].
case_images: Posttreatment dental casts
case_images: JOS-7-2-g009.jpg
case_images: PMC5952238_01_JOS-7-2-g009.jpg
case_images: F8
case_images: Posttreatment lateral cephalometric radiograph
case_images: JOS-7-2-g010.jpg
case_images: PMC5952238_01_JOS-7-2-g010.jpg
case_images: F9
case_images: Three years posttreatment photographs
case_images: JOS-7-2-g011.jpg
case_images: PMC5952238_01_JOS-7-2-g011.jpg
case_images: F10
case_images: The patient was satisfied with the treatment results, and the outcome was stable 3 years after the end of active treatment [Figures 10 and 11]. Therefore, a 0.020-inch stainless steel wire was bonded to the palatal surfaces of these teeth [Figure 10].
case_images: Three years posttreatment radiograph. (a) Lateral cephalometricand; (b) Panoramic
case_images: JOS-7-2-g012.jpg
case_images: PMC5952238_01_JOS-7-2-g012.jpg
case_images: F11
case_images: The patient was satisfied with the treatment results, and the outcome was stable 3 years after the end of active treatment [Figures 10 and 11].
case_images: Cephalometric superimposition
case_images: JOS-7-2-g013.jpg
case_images: PMC5952238_01_JOS-7-2-g013.jpg
case_images: F12
case_images: The dentoskeletal changes that occurred during treatment and after 3 years posttreatment are presented in the cephalometric superimposition [Figure 12].