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Treatment of mandibular second molar impaction in a patient with metal hypersensitivity

Yoshie Takehana
Yoshie Takehana
, 
Yasunori Miyauchi
Yasunori Miyauchi
 y 
Toru Kageyama
Toru Kageyama
   | 20 oct 2021
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Article Category: research-article
Publicado en línea: 20 oct 2021
Páginas: 313 - 320
DOI: https://doi.org/10.21307/aoj-2021.034
© 2021 Yoshie Takehana et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Figure 1.

Pretreatment photographs and radiographs: (A) facial photographs, (B) intraoral photographs, (C) panoramic radiograph, (D) lateral cephalometric radiograph and (E) lateral cephalometric tracing.
Pretreatment photographs and radiographs: (A) facial photographs, (B) intraoral photographs, (C) panoramic radiograph, (D) lateral cephalometric radiograph and (E) lateral cephalometric tracing.

Figure 2.

Three-dimensional computed tomography (3DCT) images.
Three-dimensional computed tomography (3DCT) images.

Figure 3.

Progress photographs: (A) mesial movement of the mandibular right first molar, (B) mesial marginal ridge of the mandibular right second molar is confirmed, (C) initial stage of molar occlusion using the occlusal surface of the mandibular right second molar, (D) inclination of the second molar is improved.
Progress photographs: (A) mesial movement of the mandibular right first molar, (B) mesial marginal ridge of the mandibular right second molar is confirmed, (C) initial stage of molar occlusion using the occlusal surface of the mandibular right second molar, (D) inclination of the second molar is improved.

Figure 4.

Posttreatment photographs and radiographs: (A) facial photographs, (B) intraoral photographs, (C) panoramic radiograph, (D) lateral cephalometric radiograph and (E) lateral cephalometric tracing.
Posttreatment photographs and radiographs: (A) facial photographs, (B) intraoral photographs, (C) panoramic radiograph, (D) lateral cephalometric radiograph and (E) lateral cephalometric tracing.

Figure 5.

After retention photographs and radiographs: (A) facial photographs, (B) intraoral photographs, (C) panoramic radiograph, (D) lateral cephalometric radiograph and (E) lateral cephalometric tracing.
After retention photographs and radiographs: (A) facial photographs, (B) intraoral photographs, (C) panoramic radiograph, (D) lateral cephalometric radiograph and (E) lateral cephalometric tracing.

Figure 6.

Superimposed tracings of lateral cephalometric radiographs at pretreatment (solid line), posttreatment (dashed line), and after retention (dotted line); right molars are traced. (A) on the sella-nasion plane at the sella, (B) on the palatal plane at ANS and (C) on the mandibular plane at Menton.
Superimposed tracings of lateral cephalometric radiographs at pretreatment (solid line), posttreatment (dashed line), and after retention (dotted line); right molars are traced. (A) on the sella-nasion plane at the sella, (B) on the palatal plane at ANS and (C) on the mandibular plane at Menton.

Cephalometric analyses

Pretreatment Posttreatment After retention Normative mean
SNA (º) 82.0 82.0 82.0 82.1
SNB (º) 82.0 82.0 82.0 78.5
ANB (º) 0.0 0.0 0.0 3.6
Facial angle (º) 92.5 93.0 93.0 84.6
Y-axis (º) 58.0 58.0 58.0 65.2
FMA (º) 22.5 22.0 22.0 28.6
SN-MP (º) 32.5 32.0 32.0 34.7
Gonial angle (º) 121.0 121.0 121.0 121.2
Occ. Plane to SN (º) 12.0 13.5 13.5 16.8
U1 to SN (º) 114.0 111.0 111.0 103.8
IMPA (L1 to MP) (º) 94.0 90.0 90.0 96.2
Interincisal angle (º) 119.5 127.0 127.0 125.6
U1 to A-Pog (mm) 8.0 6.0 6.0 7.1
L1 to A-Pog (mm) 5.0 3.0 3.0 3.6
E-line:Upper (mm) -3.5 -4.0 -2.0 0.2
E-line:Lower (mm) -1.0 -4.0 -1.0 2.1
Overjet (mm) R + 4.0, L + 2.0 3.0 3.0 3.1
Overbite (mm) R + 3.0, L + 1.5 2.0 2.0 3.3
eISSN:
2207-7480
Idioma:
Inglés
Calendario de la edición:
Volume Open
Temas de la revista:
Medicine, Basic Medical Science, other
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