The correlation between surgical reference points: antilingula, lingula, and mandibular foramen

Hsu, Han-Jen; Chen, Ying-Sheng; Chen, Ping-Ho; Chen, Han-Sheng; Chen, Chun‐Ming

doi:10.1016/j.jormas.2020.11.007

Cited by 7 publications

(5 citation statements)

References 15 publications

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“…15,16 In contrast, Hsiao et al 17 reported that the bilateral antilingular prominences were detected by CT at the rate of 67.8% and that using the position of the antilingula as the sole landmark for IVRO was insufficient. Moreover, Hsu et al 18 reported that the antilingular prominences were located anteriorly and above the mandibular foramen in almost all their patients. Further, Pogrel et al 19 reported that many antilingular prominences are located superiorly and anteriorly to the mandibular foramen, with some prominences located 8.0 mm anteriorly and 12.0 mm superiorly to the mandibular foramen; therefore, the prominence cannot be used as a reference.…”

Section: Discussionmentioning

confidence: 97%

Computed tomography‐based morphological analysis for intraoral vertical ramus osteotomy in patients with mandibular prognathism

Kudoh

Ohe

Takamaru

et al. 2023

Oral Science International

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AimIntraoral vertical ramus osteotomy (IVRO) is an orthognathic surgery for patients with jaw deformity. To avoid complications associated with IVRO, understanding the position of the mandibular foramen and shape of the mandibular ramus in patients with mandibular prognathism is important, which only few studies have reported. Most studies have been performed with dry skulls of older people without jaw deformity. This study aimed to examine the position and shape of the mandibular foramen and ramus, respectively, using computed tomography in patients with mandibular prognathism.MethodsThe study was performed on 50 Japanese patients who underwent IVRO. We examined the position of the mandibular foramen against the occlusal plane, distance between the posterior border of the mandible and mandibular foramen, and thickness of the mandibular ramus.ResultsThe mandibular foramen was vertically located above the occlusal plane at a distance of 2.6 ± 5.1 and 1.2 ± 5.1 mm in men and women, respectively. The distances between the mandibular ramus and foramen, measured with the posterior border line of the mandibular ramus as a criterion, were 15.9 ± 2.2 and 14.4 ± 2.1 mm in men and women, respectively. The thickest parts of the mandibular ramus were 6.8 ± 1.6 and 6.9 ± 0.9 mm in men and women, respectively.ConclusionKnowledge of the accurate position of the mandibular foramen is important for a safe IVRO. Mandibular ramus osteotomy line should be within 10 mm from the posterior border of the mandibular ramus, to avoid inferior alveolar nerve damage.

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Section: Discussionmentioning

confidence: 97%

Computed tomography‐based morphological analysis for intraoral vertical ramus osteotomy in patients with mandibular prognathism

Kudoh

Ohe

Takamaru

et al. 2023

Oral Science International

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“…In addition, it is difficult to obtain sufficient samples without tooth loss and wear for measurement and analysis due to incomplete skeletal remains of the deceased (23). As technology updates, the location of mandibular foramen can be easily determined by CBCT (24). In the current study, the population was selected to avoid measurement error caused by age.…”

Section: Discussionmentioning

confidence: 99%

“…Simplant OMS software can be used to perform 3D measurements and analyses of soft and hard tissues. After a CBCT examination of the maxillofacial region, the data were imported into Simplant OMS software to perform 3D reconstruction and measurement of the mandible, which makes the data more accurate and more visible (24,25). Zhao et al (26) measured and analyzed the mandible of 100 corpses and reported that the distance between the mandibular foramen and anterior border of the mandibular ramus was 17.87±0.22 mm.…”

Section: Discussionmentioning

confidence: 99%

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Anatomic feasibility of a modified 3-distal site anesthesia injection method for impacted mandibular third molar extraction using cone-beam computed tomography

Nie¹,

Chen²,

Zhang³

et al. 2022

Ann Transl Med

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Background: Various injection methods have been used to improve the success rate of inferior alveolar nerve (IAN) block and reduce the pain and complications. But these methods also have their advantages and disadvantages. A modified 3-distal site anesthesia injection method proposed in 2015 was used clinically with satisfactory results at some dental clinics in China. This study aimed to determine the feasibility of this modified 3-distal site anesthesia injection method for extraction of an impacted mandibular third molar from an anatomical point of view.Methods: Three-dimensional (3D) reconstruction and analysis of the mandibles was performed using conebeam computed tomography (CBCT) scanning to measure the simulated needle insertion depth, infiltration distance, and other important parameters. These parameters were compared with an actual depth of 20 mm and a theoretic infiltration distance of 10 mm. The main parameters were compared between males and females.Results: Sixty-three CBCT datasets were imported into Simplant OMS software for 3D reconstruction.The left simulated insertion depth did not differ from 20 mm, while right insertion depth was >20 mm (P<0.05). The bilateral infiltration distances were <10 mm (P<0.05) and articaine blocked the IAN. The widths of the mandibular rami were greater than the syringe length (21 mm), thus it was not possible for the syringe to reach the distal edge of the mandible. There was no difference in the simulated needle insertion depth and infiltration distance between the left and right (P>0.05). The bilateral simulated insertion depths, infiltration distances, widths of the mandibular rami, and height of the left mandibular foramen in females were less than in males (P<0.05), while there was no difference in the height of the right mandibular foramen and bilateral insertion angles (P>0.05). Conclusions:The modified 3-distal site anesthesia injection method was shown to block the IAN based on anatomic evidence derived from 3D analysis on the measurements by CBCT.

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“…Previous studies [ 11 – 13 ] have demonstrated the relationship between the position of the antilingula and that of the lingula and mandibular foramen. Scholars [ 13 – 15 ] have suggested that the position of the antilingula—which can be seen during operation—exhibited a stable relationship with the position of the mandibular foramen.…”

Section: Discussionmentioning

confidence: 99%

Antilingula as a Surgical Reference Point for Vertical Ramus Osteotomy

Chen

Lin

et al. 2021

BioMed Research International

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Purpose. This study investigated the antilingula and its related landmarks, the mandibular rami, by using cone-beam computed tomography (CBCT). Methods. CBCT images of 37 patients (74 sides of the mandibular ramus) were collected. The landmarks of antilingula (AntiL), anterior ramus (A), posterior ramus (P), superior ramus (S), and inferior ramus (I) were identified. The distances (A-AntiL, P-AntiL, S-AntiL, and I-AntiL) were statistically evaluated according to gender, side (right and left), and skeletal patterns. Results. The distance from the antilingula to the anterior (A-AntiL) border of the ramus was significantly longer on the right side (14.69 mm) than on the left side (13.97 mm). Male patients had longer AntiL-P, AntiL-I, and S-I distances (18.96, 40.07, and 54.94 mm, respectively) than did female patients (16.66, 35, and 47.54 mm, respectively). Regarding skeletal patterns, the classes can be ordered as follows in terms of the measurements: class III>class II>class I. However, the differences between the classes were nonsignificant. Pearson correlation analysis revealed that gender and S-I distance were strongly correlated ( r = 0.667 ); specifically, male patients had a longer S-I distance. A-AntiL and A-P also exhibited a strong correlation ( r = 0.796 ). Conclusion. Antilingula-related distances did not differ between skeletal patterns. Among antilingula-related variables, A-AntiL could serve as a favorable measuring point during operation.

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The correlation between surgical reference points: antilingula, lingula, and mandibular foramen

Cited by 7 publications

References 15 publications

Computed tomography‐based morphological analysis for intraoral vertical ramus osteotomy in patients with mandibular prognathism

Computed tomography‐based morphological analysis for intraoral vertical ramus osteotomy in patients with mandibular prognathism

Anatomic feasibility of a modified 3-distal site anesthesia injection method for impacted mandibular third molar extraction using cone-beam computed tomography

Antilingula as a Surgical Reference Point for Vertical Ramus Osteotomy

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