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Bao T, Yu D, Zheng J, Zhu W, Wei D, Wang H. A three-dimensional quantitative assessment on bony growth and symmetrical recovery of mandible after decompression for unicystic ameloblastoma. Sci Rep 2024; 14:15492. [PMID: 38969711 PMCID: PMC11226675 DOI: 10.1038/s41598-024-66411-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 07/01/2024] [Indexed: 07/07/2024] Open
Abstract
Unicystic ameloblastoma (UAM) of the jaw can be effectively reduced in volume through decompression, which promotes bone regeneration and restores jaw symmetry. This study quantitatively evaluated changes in mandible volume and symmetry following decompression of mandibular UAM. This study included 17 patients who underwent surgical decompression followed by second-stage curettage for mandibular UAM. Preoperative and postoperative three-dimensional computed tomography (CT) images were collected. Bone volume and the area of cortical perforation were measured to assess bone growth during decompression. Mandibular volumetric symmetry was analyzed by calculating the volumetric ratio of the two sides of the mandible. Twelve pairs of landmarks were identified on the surface of the lesion regions, and their coordinates were used to calculate the mean asymmetry index (AI) of the mandible. Paired t-tests and the Mann-Whitney U test were used for statistical analysis, with p < 0.05 considered indicative of statistical significance. The mean duration of decompression was 9.41 ± 3.28 months. The mean bone volume increased by 8.07 ± 2.41%, and cortical perforation recovery was 71.97 ± 14.99%. The volumetric symmetry of the mandible improved significantly (p < 0.05), and a statistically significant decrease in AI was observed (p < 0.05). In conclusion, UAM decompression enhances bone growth and symmetry recovery of the mandible. The present evaluation technique is clinically useful for quantitatively assessing mandibular asymmetry.
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Affiliation(s)
- Tingwei Bao
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, Zhejiang, China
| | - Di Yu
- General Department, Hangzhou Dental Hospital, # 1 Pinghai Road, Hangzhou, Zhejiang, China
| | - Jiaqi Zheng
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, Zhejiang, China
| | - Wenyuan Zhu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, Zhejiang, China
| | - Dong Wei
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, Zhejiang, China
| | - Huiming Wang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, #79 Qingchun Road, Hangzhou, Zhejiang, China.
- The Affiliated Hospital of Stomatology, School of Stomatology, Zhejiang University, #395 Yan'an St, Hangzhou, 310000, Zhejiang, China.
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Kammerhofer G, Bogdan S, Vegh D, Ujpal M, Kiss D, Jakob NP, Fadgyas F, Szabo G, Nemeth Z. Solitary ameloblastic fibroma with impacted teeth: A case report. J Craniomaxillofac Surg 2024:S1010-5182(24)00193-8. [PMID: 38971652 DOI: 10.1016/j.jcms.2024.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/19/2024] [Accepted: 06/08/2024] [Indexed: 07/08/2024] Open
Abstract
This case report aimed to describe a rare benign mandibular tumour and assess the outcomes of the most recent reviews, between January 2017 and August 2023. Presenting a detailed clinical case, this study advances our understanding of the diagnostic and therapeutic aspects, ultimately improving the management of similar cases in clinical practice. Orthopantomogram (OPG) revealed a well-defined unilocular radiolucency extending from the midline of the ramus and teeth 47 and 48 were submerged at the base of the mandible. In the presented case, a PLANMECA ROMEXIS PROMAX® three-dimensional (3D) maximum (MAX) cone-beam computed tomography (CBCT) device was used for the 3D examination. An intraoral approach was preferred and the tumour was removed in toto by creating a bone window using a W&H® Dentalwerk Bürmoos GmbH Piezomed piezoelectric device, and the bone plates were fixed with 4 MEDARTIS® microplates, with a primary flap closure. A PANORAMIC 1000, 3DHISTECH Ltd® device was employed for the histological investigation. Odontogenic tumours are rare and typically asymptomatic, often discovered incidentally during routine radiographic examinations. Most of these benign lesions heal well after complete excision and require long-term follow-up. Once diagnosed, ameloblastic fibroma (AF) should be treated immediately to avoid malignant transformation.
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Affiliation(s)
- Gabor Kammerhofer
- Department of Oromaxillofacial Surgery and Stomatology, Semmelweis University, 1088, Budapest, Hungary.
| | - Sandor Bogdan
- Department of Oromaxillofacial Surgery and Stomatology, Semmelweis University, 1088, Budapest, Hungary
| | - Daniel Vegh
- Department of Prosthodontics, Semmelweis University, 1088, Budapest, Hungary
| | - Marta Ujpal
- Department of Oromaxillofacial Surgery and Stomatology, Semmelweis University, 1088, Budapest, Hungary
| | - Dorottya Kiss
- Department of Oromaxillofacial Surgery and Stomatology, Semmelweis University, 1088, Budapest, Hungary
| | - Noemi Piroska Jakob
- Department of Pathology and Experimental Cancer Research, Semmelweis University, 1085, Budapest, Hungary
| | - Fanny Fadgyas
- Department of Oromaxillofacial Surgery and Stomatology, Semmelweis University, 1088, Budapest, Hungary
| | - Gyorgy Szabo
- Department of Oromaxillofacial Surgery and Stomatology, Semmelweis University, 1088, Budapest, Hungary
| | - Zsolt Nemeth
- Department of Oromaxillofacial Surgery and Stomatology, Semmelweis University, 1088, Budapest, Hungary
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Almazyad A, Alamro M, Almadan N, Almutairi M, AlQuwayz TS. Frequency and Demographic Analysis of Odontogenic Tumors in Three Tertiary Institutions: An 11-Year Retrospective Study. Diagnostics (Basel) 2024; 14:910. [PMID: 38732324 PMCID: PMC11083381 DOI: 10.3390/diagnostics14090910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 04/22/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
Odontogenic tumors (OTs) are distinct conditions that develop in the jawbones, exhibiting diverse histopathological features and variable clinical behaviors. Unfortunately, the literature on this subject in Saudi Arabia remains sparse, indicating a pressing need for more comprehensive data concerning the frequency, demographics, treatment modalities, and outcomes of OTs. OBJECTIVES The study aims to evaluate the frequency, demographic features, treatment, and outcomes of OTs across three tertiary medical centers. METHODS AND MATERIAL OT cases were identified in King Abdulaziz Medical City (KAMC), King Fahad Medical City (KFMC), and Prince Sultan Military Medical City (PSMMC) from January 2010 to December 2021. RESULTS Ninety-two OT cases were identified from the anatomical pathology laboratories of three tertiary hospitals. KFMC contributed the highest number of cases (43.5%), followed by KAMC (30.4%) and PSMMC (26.1%). The median age of OT patients was 29 years (range: 5-83), with males representing more than half of the patients (56.5%). The mandible was the most frequent site of OT occurrence (72.5%), with ameloblastoma being the predominant OT (63.0%), followed by odontoma (19.5%). Among the treatment modalities, bone resection was employed the most (51.0%), followed by enucleation (25.6%). Notably, 11.5% of OT cases with available follow-up data exhibited recurrence, with ameloblastoma accounting for eight recurrent cases. CONCLUSIONS Although OTs are relatively common in the jaws, they are rare in anatomical pathology laboratories and the general population. This study contributes valuable insights into the epidemiology characteristics, treatment trends, and recurrence rates of OTs in Saudi Arabia.
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Affiliation(s)
- Asma Almazyad
- Maxillofacial Surgery and Diagnostic Sciences Department, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, Riyadh 11481, Saudi Arabia; (M.A.); (M.A.)
- King Abdullah International Medical Research Center, Riyadh 11481, Saudi Arabia
- Department of Pathology and Laboratory Medicine, King Abdulaziz Medical City, Ministry of National Guard Health Affair, Riyadh 11426, Saudi Arabia
| | - Mohammed Alamro
- Maxillofacial Surgery and Diagnostic Sciences Department, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, Riyadh 11481, Saudi Arabia; (M.A.); (M.A.)
| | - Nasser Almadan
- Prince Sultan Military Medical Center, Riyadh 11159, Saudi Arabia; (N.A.); (T.S.A.)
- Dental Specialist Center, Hafar AlBaten 39953, Saudi Arabia
| | - Marzouq Almutairi
- Maxillofacial Surgery and Diagnostic Sciences Department, College of Dentistry, King Saud bin Abdulaziz University for Health Sciences, Riyadh 11481, Saudi Arabia; (M.A.); (M.A.)
| | - Turki S. AlQuwayz
- Prince Sultan Military Medical Center, Riyadh 11159, Saudi Arabia; (N.A.); (T.S.A.)
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Pattnaik B, Mohanty S, Das SN, Rath R, Bhatta A, Mishra S. Immunohistochemical evaluation of yes-associated protein molecule in the odontogenic epithelium of different histopathological variants of ameloblastoma and unicystic ameloblastoma. J Oral Maxillofac Pathol 2024; 28:49-55. [PMID: 38800449 PMCID: PMC11126258 DOI: 10.4103/jomfp.jomfp_215_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/11/2023] [Accepted: 10/09/2023] [Indexed: 05/29/2024] Open
Abstract
Background Ameloblastoma is one of the major odontogenic neoplasms with an invasive and recurrence potential. Its tumourigenesis and proliferative capacity can be attributed to the activation or inactivation of certain molecular signalling pathways. Hippo signalling pathway is known to regulate diverse physiological processes related to mitosis and organ growth and is an emerging tumour suppressor pathway, the dysfunction of which is implicated in various diseases including cancers. Yes-associated protein1 (YAP) and transcriptional coactivator with PDZ-binding motif (TAZ) are the downstream effectors in the Hippo cascade, which on nuclear activation leads to cellular proliferation in various tumours. Aim The current study was undertaken to evaluate the expression of YAP in various histopathological variants of ameloblastoma and unicystic ameloblastoma. Materials and Methods Fifty formalin-fixed paraffin-embedded tissue samples of histopathologically diagnosed cases of ameloblastoma, and 10 histopathologically diagnosed cases of unicystic ameloblastoma were obtained from the departmental archives to evaluate the immunohistochemical expression of YAP both manually and by software analysis. Results More than 90% of cases of conventional ameloblastoma and unicystic ameloblastoma elicited positive expression of YAP. No statistical difference was found among different histopathological variants of conventional ameloblastoma. Significant difference between the means of all four quantitative score groups was observed. Conclusion In view of the modulating effect of YAP in tumourigenesis and its higher expression in ameloblastoma, further exploration of this molecule appears to be a promising area of research.
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Affiliation(s)
- Bodhiswata Pattnaik
- Department of Oral Pathology and Microbiology, SCB Government Dental College and Hospital, Cuttack, Odisha, India
| | - Sweta Mohanty
- Department of Oral Pathology and Microbiology, Institute of Dental Sciences, Siksha ‘O’ Anusandhan, Deemed to be University, Bhubaneswar, Odisha, India
| | - Surya Narayan Das
- Department of Oral Pathology and Microbiology, SCB Government Dental College and Hospital, Cuttack, Odisha, India
| | - Rachna Rath
- Department of Oral Pathology and Microbiology, SCB Government Dental College and Hospital, Cuttack, Odisha, India
| | - Archana Bhatta
- Department of Oral Pathology and Microbiology, SCB Government Dental College and Hospital, Cuttack, Odisha, India
| | - Sourav Mishra
- Department of Oral Pathology and Microbiology, SCB Government Dental College and Hospital, Cuttack, Odisha, India
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Alarcón-Sánchez MA, Becerra-Ruíz JS, Yessayan L, Mosaddad SA, Heboyan A. Implant-supported prosthetic rehabilitation after Ameloblastomas treatment: a systematic review. BMC Oral Health 2023; 23:1013. [PMID: 38110933 PMCID: PMC10729555 DOI: 10.1186/s12903-023-03765-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 12/12/2023] [Indexed: 12/20/2023] Open
Abstract
BACKGROUND Ameloblastoma (AM), the benign counterpart of ameloblastic carcinoma, is a benign odontogenic tumor of epithelial origin, naturally aggressive, with unlimited growth potential and a high tendency to relapse if not adequately removed. Patients with AM treated surgically can benefit from dental implant therapy, promoting oral rehabilitation and improving their quality of life. The present study aimed to determine the survival rate of dental implants placed after surgical treatment of patients affected by AM. In addition, there were two secondary objectives: 1) To evaluate which dental implant loading protocols are most frequently used and 2) To determine the type of prosthetic restoration most commonly used in these patients. METHODS The Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines were followed during the study. Searches were performed in three databases (PubMed/MEDLINE, Scopus, and Google Scholar) until November 2023. Additionally, the electronic search was enriched by an iterative hand search of journals related to oral pathology and medicine, maxillofacial surgery, and oral prosthodontics and implantology. Only reports and case series in English from January 2003 to date were included. The Joanna Briggs Institute tool (JBI-Case Reports/Case Series) was used for the study quality assessment. RESULTS The total number of patients and implants studied were 64 and 271, respectively, all with surgically treated AM. The patient's ages ranged from 8 to 79 years, with a mean (SD) age of 37.3 ± 16.4. Fifty-three percent were male and 47% were female. The range of follow-up duration was 1 to 22 years. An implant survival/success rate of 98.1% was reported. In addition, most of them were conventionally loaded (38.3%). Hybrid implant-supported fixed dentures were the most commonly used by prosthodontists (53%). CONCLUSIONS Oral rehabilitation with dental implants inserted in free flaps for orofacial reconstruction in surgically treated patients with AM can be considered a safe and successful treatment modality.
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Affiliation(s)
- Mario Alberto Alarcón-Sánchez
- Biomedical Science, Faculty of Chemical-Biological Sciences, Autonomous University of Guerrero, Chilpancingo de los Bravo, Guerrero, Mexico
| | - Julieta Sarai Becerra-Ruíz
- Institute of Research of Bioscience, University Center of Los Altos, University of Guadalajara, Tepatitlán de Morelos, Jalisco, Mexico
| | - Lazar Yessayan
- Department of Therapeutic Stomatology, Faculty of Stomatology, Yerevan State Medical University after Mkhitar Heratsi, Yerevan, Armenia
| | - Seyed Ali Mosaddad
- Student Research Committee, School of Dentistry, Shiraz University of Medical Sciences, Qasr-e-Dasht Street, Shiraz, Iran.
| | - Artak Heboyan
- Department of Prosthodontics, Faculty of Stomatology, Yerevan State Medical University after Mkhitar Heratsi, Str. Koryun 2, 0025, Yerevan, Armenia.
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Escobar E, Gómez-Valenzuela F, Peñafiel C, Ortega-Pinto A. Odontogenic tumours in a Chilean population: a retrospective study of 544 cases based on 2022 WHO classification. Med Oral Patol Oral Cir Bucal 2023; 28:e596-e606. [PMID: 37823289 PMCID: PMC10635623 DOI: 10.4317/medoral.26008] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 09/18/2023] [Indexed: 10/13/2023] Open
Abstract
BACKGROUND Odontogenic tumours are infrequent lesions. Studies on the frequency of odontogenic tumours from Latin America are scarce. This work aimed to determine the relative frequency of odontogenic tumours in a Chilean population using the 2022 World Health Organization classification. MATERIAL AND METHODS This is a case series retrospective study. We reviewed 35,530 samples from 1975 to 2022 from the Oral Pathology Referral Institute and the Pathological Anatomy Service, Faculty of Dentistry, University of Chile. We utilized the 2022 World Health Organization classification for histological typification. RESULTS According to 2022 World Health Organization classification, 544 odontogenic tumours were confirmed. The most frequent odontogenic tumours were: odontoma (n=241; 44.3%), ameloblastoma (n=109; 20.0%) and cemento-ossifying fibroma (n=71; 13.1%). Benign odontogenic tumours corresponded to 538 cases (98.9%) and malignant tumours were only six cases (1.1%). CONCLUSIONS In our population, odontoma was the most frequent odontogenic tumour followed by ameloblastoma and cemento-ossifying fibroma. Malignant odontogenic tumours were very rare. The results of this study are similar to reports from America, but there are some differences concerning the data from Africa and Asia.
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Affiliation(s)
- E Escobar
- Department of Oral Pathology and Medicine Faculty of Dentistry, University of Chile Olivos 943, Independencia, Santiago Postal Code: 8380544, Chile
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DeColibus KA, Rasner DS, Okhuaihesuyi O, Owosho AA. Clinicoradiopathologic Analysis of Odontomas: A Retrospective Study of 242 Cases. Dent J (Basel) 2023; 11:253. [PMID: 37999017 PMCID: PMC10670178 DOI: 10.3390/dj11110253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/25/2023] [Accepted: 10/27/2023] [Indexed: 11/25/2023] Open
Abstract
Odontomas are considered hamartomatous lesions and are one of the two most common odontogenic tumors of the jaw. Odontomas are classified as compound or complex. Recently, ameloblastic fibro-odontoma (AFO) and ameloblastic fibro-dentinoma were reclassified as developing odontomas. Though clinically odontomas are usually asymptomatic, they have adverse effects on adjacent teeth such as tooth impaction, delayed eruption, displacement of teeth, over-retention of teeth, and can give rise to odontogenic cysts within the jaw. We sought to evaluate the clinicoradiopathologic presentations of odontomas by collecting and analyzing the clinical, radiographic, and pathologic data of odontomas diagnosed in our institution from 2013 to 2022. Over this 10-year period, there were 242 patients with a histopathological and/or radiographic diagnosis of odontoma. There was no gender predilection and ages ranged from 3 to 101 years (median, 14 years). The second decade of life was the most prevalent (57.4%). There was no jaw predilection; however, the anterior jaw was the most common location. Ninety-four (38.8%) cases presented with clinical findings. The most common finding was tooth impaction (n = 83). Nine (3.7%) cases were histopathologically confirmed to be associated with other lesions such as dentigerous cysts (n = 8) and nasopalatine duct cyst (n = 1). The median age (25 years) of patients diagnosed with odontomas associated with cysts was older than patients with odontomas (14 years) without associated cysts. Compound odontomas were the most common type of odontoma compared to complex and AFOs with 71.4%, 26.6%, and 2%, respectively. The majority of compound odontomas involved the anterior jaw (69.3%) and mandible (54.9%) while the majority of complex odontomas involved the posterior jaw (59.6%) and maxilla (54.7%). The four AFOs were in the posterior jaw and 75% involved the maxilla. The median age (12 years) of patients diagnosed with AFO was the youngest compared to patients diagnosed with compound (13 years) and complex (16 years). In conclusion, we analyzed the clinical, radiographic, and pathologic features of 242 new cases of odontomas. Our study reaffirms that odontomas frequently affect the pediatric population and can disrupt their dentition. Based on the result of this study, our clinical recommendation to prevent problems to adjacent teeth from odontomas is for dentists to be apt in the diagnose of odontomas to ensure that they are surgically removed in a timely manner.
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Affiliation(s)
- Katherine A. DeColibus
- Department of Diagnostic Sciences, College of Dentistry, The University of Tennessee Health Science Center, 875 Union Avenue, Memphis, TN 38163, USA; (K.A.D.); (D.S.R.)
| | - D. Shane Rasner
- Department of Diagnostic Sciences, College of Dentistry, The University of Tennessee Health Science Center, 875 Union Avenue, Memphis, TN 38163, USA; (K.A.D.); (D.S.R.)
| | - Osariemen Okhuaihesuyi
- Missouri School of Dentistry and Oral Health, A. T. Still University, Kirksville, MO 63501, USA;
| | - Adepitan A. Owosho
- Department of Diagnostic Sciences, College of Dentistry, The University of Tennessee Health Science Center, 875 Union Avenue, Memphis, TN 38163, USA; (K.A.D.); (D.S.R.)
- Department of Otolaryngology—Head and Neck Surgery, College of Dentistry, The University of Tennessee Health Science Center, Memphis, TN 38163, USA
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Kokubun K, Yamamoto K, Akashi Y, Chujo T, Nakajima K, Matsuzaka K. Genetic Study of BRAF V600E and SMO L412F Mutations in Japanese Patients with Ameloblastoma. Int J Surg Pathol 2022; 30:378-384. [PMID: 34994576 DOI: 10.1177/10668969211064203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and aim: Ameloblastoma is a benign, intraosseous, progressively growing, epithelial, odontogenic neoplasm. BRAF and SMO mutations have been reported in ameloblastoma. In this study, we evaluated BRAF V600E and SMO L412F mutations; and assessed the relationship between BRAF V600E mutant expression and the clinicopathological features in Japanese patients with ameloblastoma. Methods: We examined 24 formalin-fixed paraffin-embedded samples. All specimens were from patients with mandibular ameloblastoma: 20 were conventional ameloblastoma and 4 were unicystic ameloblastoma. The BRAF V600E mutation was assessed by Sanger sequencing and immunohistochemistry, and the SMO L412F mutation was assessed only by Sanger sequencing. Results: Twenty of the 24 (83%) ameloblastoma samples carried the BRAF V600E mutation; 22 of the 24 (92%) samples were immunohistochemically positive for BRAF V600E. However, the SMO L412F mutation was not detected in any of them. The BRAF V600E mutation status did not correlate with the clinicopathological features, such as age, sex, location, method, recurrence, and subtype. Conclusion: BRAF inhibitors could be a potential treatment option for Japanese patients with ameloblastoma, harboring the BRAF V600E mutation.
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Affiliation(s)
| | - Kei Yamamoto
- 13093Department of Pathology, Tokyo Dental College, Tokyo, Japan
| | - Yoshihiko Akashi
- 13093Department of Pathology, Tokyo Dental College, Tokyo, Japan
| | - Takatoshi Chujo
- 13093Department of Pathology, Tokyo Dental College, Tokyo, Japan
| | - Kei Nakajima
- 13093Department of Pathology, Tokyo Dental College, Tokyo, Japan
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