Mohammad Hosein Amirzade-Iranaq

By Seied Omid Keyhan, Sina Ghanean, Alireza Navabazam, Arash Khojasteh and Mohammad Hosein Amirzade Iranaq

Three-dimensional (3D) printing is cited as “a novel, fascinating, future builder technology” in many papers and articles. Use of this technology in the field of medicine and especially oral and maxillofacial surgery is expanding. The type of manufacturing systems, materials, cost-effectiveness, and also bio-printing, with studies from around the world today, make this field a “hot-topic” in reconstructive and regenerative surgery. This chapter evaluates the latest updates and scientific uses of 3D printing.

Part of the book: A Textbook of Advanced Oral and Maxillofacial Surgery

By Seied Omid Keyhan, Mohammad Ali Asayesh, Arash Khojasteh and M. Hosein Amirzade Iranaq

Facial plastic and reconstructive surgery is a remarkably diverse specialty, ranging from maxillofacial trauma and reconstruction to facial rejuvenation, rhinoplasty, cleft surgery, microvascular surgery, facial cosmetic procedures, and pain control. It is unique among surgical specialties due to changing trends, racial, and regional ethnic preferences that influence what is considered an esthetic result.

Part of the book: A Textbook of Advanced Oral and Maxillofacial Surgery

By Mohammad Hossein Khosravi, Ali Bagherihagh, Masoumeh Saeedi, Payman Dabirmoghaddam, Ali Kouhi and Mohammad Hosein Amirzade-Iranaq

In this chapter, we are going to discuss about salivary glands cancers, their clinical manifestations and categories, pathogenesis, diagnosis and treatment. We will go through details in each part in both clinical and surgical aspects based on recently prominent published studies and research in prestigious journals. After a short review on clinical features, epidemiology, pathogenesis, diagnosis and treatment, we will show staging and tumor node metastasis (TNM) classification of major salivary gland tumors and also basic principles of approach to salivary gland cancers. A little will be explained about basic surgical procedures for removal of cancers and benign tumors.

Part of the book: Head and Neck Cancer

By Mohammad Hossein Khosravi, Ali Kouhi, Masoumeh Saeedi, Ali Bagherihagh and Mohammad Hosein Amirzade-Iranaq

Rapidly increasing trend of thyroid cancer incidence has turned this disease into a global concern. An estimated number of 64,300 new cases of thyroid cancer occurred in men and women in 2016, which represents 3.8% of all new cancer cases of USA (https://seer.cancer.gov/statfacts/html/thyro.html). Thus, there is a high possibility for every physician to encounter a case of thyroid cancer during his/her professional lifetime. In this chapter, we clarified epidemiology, different categories, and new approaches toward diagnosis and management of thyroid cancer.

Part of the book: Head and Neck Cancer

By Seied Omid Keyhan, Hamidreza Fallahi, Alireza Jahangirnia, Mohammad Taher Amirzade-Iranaq and Mohammad Hosein Amirzade-Iranaq

The ultimate goal of any surgical procedure is to improve perioperative form and function and to minimize operative and postoperative morbidity. In recent years, many exciting and novel technological advances have been introduced in the field of oral and maxillofacial surgery. One example of such technology that is continuing to increase in prevalence is the use of 3-dimensional (3-D) printing techniques with special properties, which seems hopeful for practitioners in the field of regenerative medicine. Tissue engineering is a critical and important area in biomedical engineering for creating biological alternatives for grafts, implants, and prostheses. One of the main triad bases for tissue engineering is scaffolds, which play a great role for determining growth directions of stem cells in a 3-dimensional aspect. Mechanical strength of these scaffolds is critical as well as interconnected channels and controlled porosity or pores distribution. However, existing 3-D scaffolds proved less than ideal for actual clinical applications. In this chapter, we review the application and advancement of rapid prototyping (RP) techniques in the design and creation of synthetic scaffolds for use in tissue engineering. Also, we survey through new and novel merging era of “bioprinting.”

Part of the book: Biomaterials in Regenerative Medicine

By Seied Omid Keyhan, Hamidreza Fallahi, Alireza Jahangirnia, Seyed Mohammad Reza Masoumi, Mohammad Hossein Khosravi and Mohammad Hosein Amirzade-Iranaq

Nowadays, oral and maxillofacial surgeons face serious difficulties in reconstruction of large defects caused by trauma, cancer, or congenital deformities. Considering each part of oral and maxillofacial region consisting of several tissues, it is necessary to reconstruct these architectures layer by layer. Through years surgeons use different forms of grafts to reconstruct these defects. As these grafts and techniques are well described and used routinely, it should have been noticed that they are not without complications. This is where idea behind tissue engineering steps in. “Tissue engineering” due to its multi-aspect properties can be defined as application of methods and science of engineering toward the understanding of structure-function relationships of mammalian tissues in both normal and pathological forms to improve and develop biologic substitutes to reach the main goal of restoring, maintaining, and stabilization of tissue function. From standpoint of surgery, tissue engineering is not considered as a potential step anymore, but as an available approach to reach the ultimate goal of reconstruction procedures. The aim of this chapter is to defne concepts and advances in tissue engineering (TE). Also, review TE applications in the field of oral and maxillofacial surgery with bolding its clinical applications and complications based on novel and high-quality published researches.

Part of the book: Stem Cells in Clinical Practice and Tissue Engineering