scholarly journals A Comparative Evaluation of Gustafson’s Formula and New Formula for Age Estimation in India – A Forensic Study

2015 ◽  
Vol 116 (3) ◽  
pp. 203-209 ◽  
Author(s):  
Manas Bajpai ◽  
Nilesh Pardhe ◽  
Manish Kumar ◽  
Shyam Agrawal
Keyword(s):  
Age Estimation ◽  
Root Resorption ◽  
Maxillofacial Surgery ◽  
Age Determination ◽  
Longitudinal Section ◽  
Oral And Maxillofacial Surgery ◽  
Dental Fillings ◽  
Correlation And Regression Analysis ◽  
Periodontal Bone Loss ◽  
New Formula

The choice to use teeth for age determination is well accepted due to their longevity ability of being resilient to change. The total of 228 extracted teeth collected from the patients visited to the Department of Oral and Maxillofacial Surgery, NIMS Dental College, Jaipur, the teeth were without dental fillings and without and/or cavity selected. The known age was from 21 to 70 years with the average age of 43.46 years. For age estimation the method according to Gustafson was used. Every tooth was subject to longitudinal section of the midpulpal area. The following dental parameters were studied in each case: attrition, periodontal bone loss, root translucency, secondary dentin deposition, cementum apposition and root resorption. Total scores of different parameters plotted against the chronological age and regression formula was obtained. Using this formula ages were estimated, Gustafson formula was also applied in the same scores and ages estimated. The results of the chronological and estimated age by both formulae have been statistically compared using Pearson’s correlation and regression analysis. The results showed strong correlation (0.92; p<0.001) between chronological and estimated age by using both formulae. We found the mean error of ± 5.47 by using newly derived and formula and ± 6.35 by Gustafson’s formula. As a result of our study it was found that newly derived formula provides better results in comparison with Gustafson’s formula in Indian population. A positive correlation between age and total scores of physiological changes also revealed.

scholarly journals 53 A Rare Malignant Lesion of the Jaws

2021 ◽  
Vol 108 (Supplement_6) ◽  
Author(s):  
V Patel
Keyword(s):  
Root Resorption ◽  
Histological Grade ◽  
Maxillofacial Surgery ◽  
Malignant Lesion ◽  
Clinical Findings ◽  
Oral And Maxillofacial Surgery ◽  
Selective Neck Dissection ◽  
Radiographic Findings ◽  
Radiographic Features ◽  
Intraosseous Carcinoma

Abstract Introduction Primary intraosseous carcinoma (PIOC) of the jaw is an incredibly rare lesion with approximately 200 cases reported in the literature. PIOC are mostly asymptomatic incidental radiographic findings and present as poorly-defined, non-corticated radiolucencies often with root resorption and cortical perforation. Prognosis is considered poor and best predicted by histological grade. Case report A gentleman in his 50s presented to his dentist with a draining sinus from his LR6 tooth. A radiograph revealed a non-corticated radiolucency localised to the distal root of the LR6. 7 months later, he returned with pain and mobility of the LR7. Another radiograph revealed a non-corticated radiolucency from around the distal root of the LR6 extending to the LR8. Urgent biopsy of the mandibular bone was arranged by the oral and maxillofacial surgery team. Histopathology revealed the lesion was likely a benign squamous odontogenic tumour. However, it was not possible to exclude a well-differentiated squamous cell carcinoma. Correlation of clinical findings, imaging and multidisciplinary team discussion was recommended. Following the MDT meeting, excision of the bony lesion was undertaken. Histopathology this time returned as primary intraosseous carcinoma NOS T4N0M0, thought to have arisen from a radicular cyst associated with the LR6/7. The treatment was right segmental mandibulectomy, fibular free flap, selective neck dissection (I-III) and adjuvant radiotherapy. Conclusions This case highlights how subtle radiographic features can represent malignancy in lesions appearing cystic at first. Although rare, clinicians should be aware of PIOC as a differential diagnosis when presented with radiographic features which could represent malignancy.

Dental students’ perceptions of oral and maxillofacial surgery as a specialty

2019 ◽  
pp. 266-271
Author(s):  
Ibrahim Almutairi ◽  
Abdullah AlQarni ◽  
Mohammad Alharbi ◽  
Ahmed Almutairi ◽  
Mohammed Aldohan ◽  
...  
Keyword(s):  
Maxillofacial Surgery ◽  
Dental Students ◽  
Oral And Maxillofacial Surgery

Integration of CAD/CAE/RP Environment for Developing a New Product in Medical Field

2020 ◽  
Vol 38 (9A) ◽  
pp. 1276-1282
Author(s):  
Nabeel I. Allawy ◽  
Amjad B. Abdulghafour
Keyword(s):  
Maxillofacial Surgery ◽  
Essential Element ◽  
Severe Trauma ◽  
Simulation Software ◽  
Oral And Maxillofacial Surgery ◽  
Virtual Surgery ◽  
Multiple Fractures ◽  
Engineering Programs ◽  
Mesh Model ◽  
The Face

Reconstruction of the mandible after severe trauma is one of the most difficult challenges facing oral and maxillofacial surgery. The mandible is an essential element in the appearance of the human face that gives the distinctive shape of the face, holds. This paper aims to propose a methodology that allows the surgeon to perform virtual surgery by investing engineering programs to place the implant by default and with high accuracy within the mandible based on the patient's medical data. The current study involved a 35-year-old man suffering from a traffic accident in the mandible with multiple fractures of the facial bones. Basically, an identification of the steps required to perform virtual surgery and modeling images from the CBCT technology has been done by using the software proposed in the research. The implant model is designed as a mesh model, allowing the patient to return to a normal position. Moreover, an application of FEA procedures using the Solidworks simulation software to test and verify the mechanical properties of the final transplant.

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