1.Single institutional experience of geriatric maxillofacial trauma patients:a retrospective study
Srishti AGARWAL ; Murugesan KRISHNAN ; Gidean ARULARASAN ; Saravanan LAKSHMANAN
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2025;51(2):102-107
Objectives:
Geriatric maxillofacial trauma (GMT) is not an uncommon entity in maxillofacial surgery practice. The aim of the study was to document the experience with GMT cases in a single private dental college and hospital in an effort to uncover the etiology, prevalence, fracture sites, and various types of treatment in GMT.
Materials and Methods:
This was a retrospective study conducted at Saveetha Dental College and Hospital in Chennai. Data from patients diag-nosed with maxillofacial trauma between January 2019 and December 2023 were retrieved from hospital records, and those aged ≥60 years wereincluded in the study. Patients’ basic demographic details and the prevalence, etiology, fracture sites, and various treatments of GMT were recorded and analyzed. The collected data were entered into a structured database and analyzed using IBM SPSS Statistics ver. 23.0 (IBM).
Results:
A total of 867 cases were screened, and 37 (4.04%) GMT patients were finally included in the study. The mean age of the study population was 65±5 years, and there were six females and 31 males. A ground-level fall was the common etiology (n=17), and the most common site of fracture was the mandible (n=15). Open reduction and internal fixation (ORIF) was the most common treatment modality (n=24) among included cases.
Conclusion
Although the prevalence of GMT was low, ground-level falls were a common reason for trauma; hence, geriatric patients require comprehensive care in home and outdoor settings. Enhanced anesthetic and surgical techniques have made ORIF a suitable treatment approach in the present era.
2.Growth differentiation factor 15: a promising biomarker in oral cancer
Hyun Jun OH ; Jong-Ho LEE ; Soung Min KIM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2025;51(2):123-125
Growth differentiation factor 15 (GDF-15), a cytokine within the transforming growth factor-β superfamily, is involved in various malignancies, withimplications in oral squamous cell carcinoma (OSCC). Elevated GDF-15 levels are correlated with unfavorable prognosis, tumor progression, and chemotherapy resistance, and the protein has been identified as a potential diagnostic and prognostic biomarker for OSCC. Personalized treatment strategies based on GDF-15 expression could improve treatment outcomes.
3.Is difficulty of extraction associated with inferior alveolar nerve proximity on computed tomography and increased injury risk?
Jeong-Kui KU ; Sung Min KIM ; Jong-Ki HUH ; Jae-Young KIM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2025;51(2):80-86
Objectives:
Many three-dimensionally-evaluated difficulty indices for impacted third molars have been suggested; however, their radiological and clinical validation according to the inferior alveolar nerve (IAN) remains unknown. This study aimed to evaluate the association of the difficulty index with IAN proximity and injury risk.
Materials and Methods:
We retrospectively enrolled patients with cone-beam computed tomography (CBCT) for a fully impacted mandibular third molar from January to December 2020. We evaluated the third molar according to the difficulty index based on panoramic x-ray and the nerve index based on CBCT and analyzed postoperative nerve complications. The relationships among nerve proximity, difficulty indices, and nerve complications were evaluated. Data were analyzed using the Pearson’s chi-square test and the Cochran–Armitage test for trends.
Results:
We included 367 subjects (177 males, 28.9±9.8 years) with follow-up of at least 1 month. Twenty-two subjects had nerve complications.Radiologic evaluation showed that third molars with a high nerve index had an increased difficulty index (P=0.001). Nerve complication risk showed a statistically significant correlation with both nerve and difficulty indices.
Conclusion
In conclusion, the difficulty index of an impacted third molar was valid in terms of its spatial relationship with the IAN and in predicting nerve complications.
4.Role of ultrasonography in the diagnosis and management of chronic recurrent sialadenitis with sialendoscopy
Hyun-Soo JUNG ; In-Seo CHANG ; Jae-yeon KIM ; In-Seok SONG ; Bo-Yeon HWANG ; Sang-Ho JUN
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2025;51(2):117-122
Chronic recurrent sialadenitis is characterized by repeated inflammation of the salivary glands, leading to ductal structural abnormalities and salivary stasis, often resulting in megaducts. This study evaluates the efficacy of ultrasonography as a diagnostic and follow-up tool for the management of chronic recurrent sialadenitis. Three patients underwent sialendoscopy, which involved ductal dilation, removal of mucous plugs, and steroid administration. Ultrasonography was used postoperatively to monitor changes in ductal structure, including megaduct size, and to assess clinical outcomes.All three cases showed marked improvement in clinical symptoms after treatment. Ultrasonography demonstrated a reduction in megaduct size and provided real-time visualization of ductal and glandular changes. Compared to traditional imaging methods such as magnetic resonance imaging or sialography, ultrasonography offered a practical and safe option for follow-up assessment. This study highlights the utility of ultrasonography as an accessible, non-invasive, and effective tool for evaluating treatment outcomes in chronic recurrent sialadenitis. By offering detailed visualization of ductal changes and facilitating longitudinal follow-up, ultrasonography can optimize the management of this condition.
5.Zygomatic osteotomy for improving aesthetic results in orthognathic surgery: a report of two cases
Maurício Silva DEMÉTRIO ; Saulo de Matos BARBOSA ; Raphaela Kassia LIMA ; Yuri de Lima MEDEIROS ; Daniel Amaral Alves MARLIÈRE ; Neuza Maria Souza Picorelli ASSIS
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2025;51(2):108-116
Patients with anteroposterior maxillary deficiency and mandibular prognathism associated with a long-face pattern exhibit reduced anterior and lateral projection of the zygomaticomaxillary complex. Several techniques have been combined with orthognathic surgery to enhance the volume and definition of this region, such as zygomatic osteotomy. Two female patients, aged 22 (Case A) and 29 (Case B), with class II (Case A) and III (Case B) malocclusion, respectively, complained about facial aesthetics due to a long face and lack of malar projection. Le Fort I osteotomy to advance the maxilla, bilateral mandibular ramus osteotomy to set back the mandible, mentoplasty for advancement and width reduction, and zygomatic osteotomy were erformed. The patients underwent computed tomography scans, and superimposed images indicated that a volumetric increase in the malar region was achieved through the anterolateral movement of the zygomatic body. Improvements were noted in the paranasal region (Case A), better alignment of the upper and lower lips, the chin region, and an improved chin-neckline ratio (in both cases). The patients were satisfied with the results and are under follow-up. In summary, zygomatic osteotomy combined with orthognathic surgery proved to be a predictable and safe strategy for increasing malar prominence, with satisfactory aesthetic and functional outcomes.
6.A customized guide device for single needle arthrocentesis on temporomandibular joint
Jun-Hyung JEON ; Sang-Hee PARK ; Pil-Young YUN ; Jeong-Kui KU
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2025;51(2):95-101
Objectives:
This study aims to evaluate the accuracy and effectiveness of temporomandibular joint (TMJ) arthrocentesis using the three-dimensional (3D)-printed TMJ injection guide in cases of hemarthrosis caused by condyle fractures.
Materials and Methods:
A retrospective chart review was conducted for patients treated with the customized TMJ arthrocentesis guide to address hemarthrosis. Inclusion criteria included adults older than 18 years with condylar fractures not indicated for open reduction and internal fixation. The guide was fabricated using computed tomography or cone-beam computed tomography scans and 3D printing to control the degree and depth of the needle through the guide to aspirate hemarthrosis.
Results:
Six joints from five patients (average age 52.4 years) were treated using the guide. Post-procedural magnetic resonance imaging confirmed complete resolution of hemarthrosis in all cases. A representative case demonstrated successful outcomes with normal healing and no complications at 8 months post-procedure.
Conclusion
The customized TMJ injection guide, using ear-based reference points, significantly enhances the accuracy and safety of TMJ arthrocentesis. This innovation is expected to increase the accessibility and effectiveness of TMJ-related treatments for clinicians without specialized TMJ expertise.
7.Volumetric change after maxillary sinus floor elevation using absorbable collagen sponge: a retrospective cohort study
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2025;51(2):87-94
Objectives:
To evaluate changes in bone volume induced by absorbable collagen sponge (ACS) use during maxillary sinus floor elevation and to identify associated factors.
Patients and Methods:
After elevating the sinus membrane through a crestal approach (CA) or lateral approach (LA), ACS (AteloPlug; Bioland) was inserted, and dental implants were placed simultaneously. Changes in bone volume at 12 months were evaluated by three-dimensional (3D) analyses of cone-beam computed tomography images. Factors including age, sex, smoking status, span, number of ACSs, and perforation were assessed for associations with changes in sinus bone volume using uni- and multivariable analyses based on the generalized estimating equation.
Results:
Medical records of 108 patients were collected and retrospectively evaluated, with 135 regions of interest defined (CA, 45; LA, 90). The changes in bone volume at the sinus floor were 159.38±134.52 mm 3 and 486.83±253.14 mm 3 in the CA and LA groups, respectively. Bone volume changes in the CA group were significantly affected by the number of ACSs (P<0.001) and perforation of the sinus membrane (P<0.001), whereas bone volume changes in the LA group were significantly affected by the number of ACSs (P=0.001).
Conclusion
Use of ACS for maxillary sinus elevation resulted in detection of new bone formation in 3D analysis. Clinicians can ensure stable amounts of bone formation by inserting an adequate number of ACSs.
8.Mandibular metastasis of papillary thyroid carcinoma:a case report and systematic literature review
Yootaek SHIN ; Hyounmin KIM ; Solbin YANG ; Seung-Yong HAN ; Eunae Sandra CHO ; Dongwook KIM ; Hyung Jun KIM
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2025;51(2):73-79
In this paper, we systematically review the literature on papillary thyroid carcinoma (PTC) metastasis to the mandible. This is a rare oc-currence, especially in young, asymptomatic patients. We propose appropriate surgical and adjuvant therapy guidelines based on our findings. A systematic PubMed search (up to July 2023) identified 10 eligible cases of papillary or follicular thyroid carcinoma with metastasis to the mandible. Studies of patients with different histologic types or without confirmed distant metastasis were excluded. A rare case of PTC metastasizing to the mandible in a young male highlights an unusual presentation. Surgical treatment of both primary and metastatic sites, along with aggressive adjuvant therapy after surgery, had a positive impact on survival.
10.Revision surgery for malocclusion after open reduction of mandibular fracture: a case report
Takuma WATANABE ; Makoto HIROTA
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2025;51(1):54-58
Insufficient treatment of mandibular fractures can result in malocclusion, often necessitating revision surgery. Therefore, appropriate surgical treatment by oral and maxillofacial surgeons with adequate consideration of the occlusion is crucial. Moreover, in patients with bone defects between the fractured ends, bone grafting may be required. A 48-year-old man was referred to our department with malocclusion after initial surgery for mandibular fracture performed by plastic surgeons at another hospital. We performed revision surgery with bone grafting for a bone defect, and favorable postoperative occlusion and bone healing were achieved. Occlusal reconstruction is paramount, and bone grafting may be required if the procedure creates a bone defect. The skills and technique of oral and maxillofacial surgeons are critical, although collaboration with plastic surgeons may be necessary.

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