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Martinho FC, Aldahmash SA, Cahill TY, Gupta S, Dianat O, Mostoufi B, Price JB, Griffin I, Tordik PA. Comparison of the accuracy and efficiency of a 3D dynamic navigation system for osteotomy root-end resection performed by novice and experienced endodontists. J Endod 2022; 48:1327-1333.e1. [PMID: 35839859 DOI: 10.1016/j.joen.2022.07.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 11/19/2022]
Abstract
AIM To investigate whether the 3D-dynamic navigation system (3D-DNS) can improve experienced endodontists' (EEs') and novice endodontists' (NEs') accuracy and efficiency in osteotomy and root-end resection (RER) and to verify that the 3D-DNS enables NEs to perform osteotomy and RER as accurately and efficiently as EEs. METHODS Seventy-six roots in cadaver heads were randomly divided into four groups: 3D-DNS-NE, 3D-DNS-EE, Freehanded (FH)-NE, and FH-EE (all, n=19). CBCT scans were taken pre- and postoperatively. Osteotomy and RER were planned virtually in the X-guided software (X-Nav Technologies, Lansdale). Accuracy was calculated by measuring the 2D and 3D virtual deviations and angular deflection (AD) using superimposing software (X-Nav technologies). Efficiency was determined by time of operation and the number of mishaps. RESULTS Accuracy deviations were significantly less in the 3D-DNS-EE group than in the FH-EE group (p<.05). We found lessened 2D and 3D accuracy deviations comparing the 3D-DNS-NE group to the FH-NE group (p<.05). The time required for osteotomy and RER with the 3D-DNS was ∼ ½ of that required for the FH method for both EEs and NEs (p<.05). We found no difference in the number of mishaps between the 3D-DNS and FH groups for EEs and NEs (p>.05). CONCLUSIONS The 3D-DNS improved EEs' and NEs' accuracy and efficiency in osteotomy and RER. The NEs were as efficient as the EEs using 3D-DNS. Notably, the 3D-DNS improved the NEs' accuracy compared to FH method but the 3D-DNS did not enable the NEs to perform osteotomy and RER as accurately as the EEs.
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Affiliation(s)
- Frederico C Martinho
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, University of Maryland, School of Dentistry, Baltimore, Maryland.
| | - Sara A Aldahmash
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, University of Maryland, School of Dentistry, Baltimore, Maryland; College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Thomas Y Cahill
- School of Dentistry, University of Maryland, Baltimore, Maryland
| | - Swati Gupta
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, University of Maryland, School of Dentistry, Baltimore, Maryland
| | - Omid Dianat
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, University of Maryland, School of Dentistry, Baltimore, Maryland; Centreville Endodontics, Centreville, Virginia
| | - Behzad Mostoufi
- Department of Oral and Maxillofacial Surgery, University of Maryland, Baltimore, Maryland
| | - Jeffery B Price
- Clinical Professor & Director of Oral Radiology, Department of Oncology and Diagnostic Sciences, University of Maryland, School of Dentistry, Baltimore, Maryland
| | - Ina Griffin
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, University of Maryland, School of Dentistry, Baltimore, Maryland
| | - Patricia A Tordik
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, University of Maryland, School of Dentistry, Baltimore, Maryland
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Bestman EG, Brooks JK, Mostoufi B, Bashirelahi N. What every dentist needs to know about electronic cigarettes. Gen Dent 2021; 69:31-35. [PMID: 33908875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electronic cigarette (EC) use is on a steady rise, leading to increased concerns about its efficacy with regard to tobacco cessation goals and safety with regard to systemic and oral health. Recent studies have shown that EC flavoring agents can have adverse effects similar to those of combustible tobacco products. Evidence is mounting that EC use should not be considered a healthier alternative to tobacco smoking. The aerosols produced by ECs have been associated with respiratory, cardiac, and central nervous system disease as well as oral mucosal alterations. In addition, ECs can affect kidney and liver function. Their use has also resulted in EC explosions and burn injuries, some of which have been fatal. The aim of this article is to review the systemic and oral health concerns associated with EC use.
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Dianat O, Nosrat A, Mostoufi B, Price JB, Gupta S, Martinho FC. Accuracy and efficiency of guided root-end resection using a dynamic navigation system: a human cadaver study. Int Endod J 2021; 54:793-801. [PMID: 33368371 DOI: 10.1111/iej.13466] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/19/2020] [Accepted: 12/22/2020] [Indexed: 12/17/2022]
Abstract
AIM To determine and compare the accuracy and efficiency of a dynamic navigation system (DNS) with a freehand (FH) technique when conducting root-end resection in a human cadaver model. METHODOLOGY Forty roots in cadaver heads were included and divided into two groups: DNS (n = 20) and FH (n = 20). Cone beam computed tomography (CBCT) scans of all teeth were taken. The drilling path and depth were planned virtually to using the X-guide software (X-Nav Technologies, Lansdale, PA, USA). Osteotomy and root-end resection were done under navigation in the DNS group, and freehand under the dental operating microscope in the FH group. Post-operative CBCTs were taken. Linear deviations, angular deflection, time of operation and number of mishaps were compared with determine the accuracy and efficiency. Shapiro-Wilk, one-way ANOVA and Fisher exact tests were used (P < 0.05). RESULTS Linear deviations, angular deflection and operation time were significantly less in the DNS group (P < 0.05). The number of mishaps was not different between the two groups (P > 0.05). Subgroup analyses revealed that the distance of >5 mm from buccal cortical plate was significantly associated with lower accuracy, increased operation time and greater incidence of mishaps in the FH group (P < 0.05), but not in the DNS group. CONCLUSIONS The dynamic navigation system was more accurate and more efficient in root-end resection in a cadaver model than the freehand technique. The distance of the roots from the buccal cortical plate had a significant negative impact on the accuracy and efficacy of the root-end resection procedure when using the freehand technique. The dynamic navigation system has the potential to be a safe and reliable technological addition to endodontic microsurgery.
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Affiliation(s)
- O Dianat
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, University of Maryland, Baltimore, Maryland, USA
| | - A Nosrat
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, University of Maryland, Baltimore, Maryland, USA
| | - B Mostoufi
- Department of Oral & Maxillofacial Surgery, University of Maryland, Baltimore, Maryland, USA
| | - J B Price
- Department of Oncology & Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, Maryland, USA
| | - S Gupta
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, University of Maryland, Baltimore, Maryland, USA
| | - F C Martinho
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, University of Maryland, Baltimore, Maryland, USA
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Dianat O, Gupta S, Price JB, Mostoufi B. Guided Endodontic Access in a Maxillary Molar Using a Dynamic Navigation System. J Endod 2020; 47:658-662. [PMID: 33045269 DOI: 10.1016/j.joen.2020.09.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/20/2020] [Accepted: 09/22/2020] [Indexed: 12/25/2022]
Abstract
The treatment of calcified root canals is challenging in endodontic practice. A 63-year-old man was referred to the postgraduate endodontic clinic at the University of Maryland School of Dentistry, Baltimore, MD, for the treatment of tooth #3. Because of the patient's history of head and neck radiation and the high risk of developing osteoradionecrosis, a nonsurgical endodontic approach was found to be the most reasonable treatment option despite the questionable prognosis of the tooth. During the endodontic treatment, the distobuccal canal appeared to be partially calcified and was not possible to be located freehand even with use of the dental operating microscope and cone-beam computed tomographic approximated approach. Therefore, the dynamic navigation system using the X-Guide system (X-Nav technologies, LLC, Lansdale, PA) was used, which allowed for the successful location of the canal. Conventional endodontic treatment was completed following standardized instrumentation, irrigation, and obturation. Details on how to use the dynamic navigation system are described including its advantages, disadvantages, and limitations.
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Affiliation(s)
- Omid Dianat
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, School of Dentistry, University of Maryland, Baltimore, Maryland.
| | - Swati Gupta
- Division of Endodontics, Department of Advanced Oral Sciences and Therapeutics, School of Dentistry, University of Maryland, Baltimore, Maryland
| | - Jeffery B Price
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, Maryland
| | - Behzad Mostoufi
- Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Maryland, Baltimore, Maryland
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Brooks JK, Mostoufi B, Sultan AS, Khoury ZH, Price JB, Papadimitriou JC, Basile JR, Drachenberg CB, Younis RH. Central xanthoma of the mandible associated with hyperlipidemia: A rare presentation. Int J Pediatr Otorhinolaryngol 2018; 105:75-78. [PMID: 29447824 DOI: 10.1016/j.ijporl.2017.11.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 11/19/2017] [Accepted: 11/21/2017] [Indexed: 11/25/2022]
Abstract
Xanthoma is a common, self-limiting cutaneous lesion of non-Langerhans cell, lipid-laden foamy histiocytes that is often concomitant with hyperlipidemia. The intraosseous counterpart is rarely encountered and typically presents as a painless, expansile osteolytic process in the context of hyperlipidemia or normolipidemia. Only a scant number of gnathic xanthomas have been reported in the otolaryngologic literature. We report the clinical, laboratory, radiographic, histopathologic, immunohistochemical, and ultrastructural studies of a mandibular lesion discovered in an asymptomatic 16-year-old male, and associated with 2 previously unreported comorbidities, namely hyperlipidemia and vitamin D deficiency.
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Affiliation(s)
- John K Brooks
- Department of Oncology and Diagnostic Sciences, University of Maryland School of Dentistry, Baltimore, MD, United States.
| | - Behzad Mostoufi
- Department of Oral and Maxillofacial Surgery, University of Maryland School of Dentistry, Baltimore, MD, United States.
| | - Ahmed S Sultan
- Graduate Program in Oral and Experimental Pathology, Department of Oncology and Diagnostic Sciences, University of Maryland School of Dentistry, Baltimore, MD, United States.
| | - Zaid H Khoury
- Graduate Program in Oral and Experimental Pathology, Department of Oncology and Diagnostic Sciences, University of Maryland School of Dentistry, Baltimore, MD, United States.
| | - Jeffery B Price
- Director of Oral and Maxillofacial Radiology, Department of Oncology and Diagnostic Sciences, University of Maryland Dental School, Baltimore, MD, United States.
| | - John C Papadimitriou
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, United States.
| | - John R Basile
- Department of Oncology and Diagnostic Sciences, University of Maryland School of Dentistry, Baltimore, MD, United States; Molecular and Structural Biology Branch, The Marlene and Stewart Greenebaum Center, Baltimore, MD, United States.
| | - Cinthia B Drachenberg
- Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, United States; Electron Microscopy Laboratory, University of Maryland School of Medicine, Baltimore, MD, United States.
| | - Rania H Younis
- Department of Oncology and Diagnostic Sciences, University of Maryland School of Dentistry, Baltimore, MD, United States; Molecular and Structural Biology Branch, The Marlene and Stewart Greenebaum Center, Baltimore, MD, United States.
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Sultan AS, Mostoufi B, Papadimitriou JC, Koka R, Basile J, Younis RH. Large Cell Transformation of Oral Mycosis Fungoides. Head Neck Pathol 2017; 12:247-251. [PMID: 28741231 PMCID: PMC5953864 DOI: 10.1007/s12105-017-0840-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 07/20/2017] [Indexed: 01/15/2023]
Abstract
Mycosis fungoides (MF) accounts for approximately 50% of all primary cutaneous lymphomas. MF occurrence in the oral cavity is extremely rare with approximately 45 cases reported to date. We present a case of a 68 year-old man with a raised nodular lesion of the ventral tongue with clinical impression of irritational fibroma. Histopathologic and immunohistochemical (IHC) examination revealed a phenotype consistent with MF with large cell transformation in the context of Sezary syndrome. The histological diagnosis of oral MF requires a high index of suspicion and IHC panel to rule out large cell transformation. To our knowledge, only four cases of large cell transformation of oral MF have been reported in the English literature. The clinical and histopathologic features of a rare case of intra-oral MF with large cell transformation are exemplified in this article.
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Affiliation(s)
- Ahmed S. Sultan
- 0000 0001 2175 4264grid.411024.2Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD 21201 USA
| | - Behzad Mostoufi
- 0000 0001 2175 4264grid.411024.2Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Maryland, Baltimore, MD 21201 USA
| | - John C. Papadimitriou
- 0000 0001 2175 4264grid.411024.2Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201 USA
| | - Rima Koka
- 0000 0001 2175 4264grid.411024.2Department of Pathology, University of Maryland School of Medicine, Baltimore, MD 21201 USA
| | - John Basile
- 0000 0001 2175 4264grid.411024.2Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD 21201 USA ,University of Maryland Greenebaum Cancer Center, Baltimore, MD 21201 USA
| | - Rania H. Younis
- 0000 0001 2175 4264grid.411024.2Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD 21201 USA ,University of Maryland Greenebaum Cancer Center, Baltimore, MD 21201 USA
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Caccamese J, Murphy J, Younis R, Forest A, Mostoufi B. Is electrocautery comparable to adjuvant treatments for keratocystic odontogenic tumors? Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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