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Maxillofacial Plastic and Reconstructive Surgery

Su-Been Yu, Bong-Gyu Song, Kyeong-Jun Cheon, Ju-Won Kim, Young-Hee Kim, Byoung-Eun Yang
Background: This study aimed to evaluate the mechanical, biological, and esthetic stability of a zirconium abutment according to evidence-based dentistry. Main text: An electronic search was performed. Domestic studies were found using the keywords "zirconia abutments" and "zirconium abutment" in KMbase, KoreaMed, and the National Assembly Library, and international studies were found using the same keywords in PubMed. All identified studies were divided by evidence level from the viewpoint of the research type utilizing the evidence-based review manual...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Ji Yun Choi, Hyo Joon Kim, Seong Yong Moon
Temporalis tendon transfer is a technique for dynamic facial reanimation. Since its inception, nearly 80 years ago, it has undergone a wealth of innovation to produce the modern operation. Temporalis tendon transfer is a relatively minimally invasive technique for the dynamic reanimation of the paralyzed face. This technique can produce significant and appropriate movement of the lateral oral commissure, more closely mimicking the normal side. The aim of this article is to review the technique of temporalis tendon transfer involving transferring of the coronoid process of the mandible with the insertion of the temporalis tendon via intra-oral and transcutaneous approach...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Joohee Jeong, Akram Abdo Almansoori, Hyun-Soo Park, Soo-Hwan Byun, Seung-Ki Min, Han-Wool Choung, Joo Yong Park, Sung Weon Choi, Bongju Kim, Soung-Min Kim, Jong-Ho Lee
Background: Cross-facial nerve graft is considered the treatment of choice for facial reanimation in patients with unilateral facial palsy caused by central facial nerve damage. In most cases, a traditional parotidectomy skin incision is used to locate the buccal and zygomatic branches of the facial nerve. Methods: In this study, cross-facial nerve graft with the sural nerve was planned for three patients with facial palsy through an intraoral approach. Results: An incision was made on the buccal cheek mucosa, and the dissection was performed to locate the buccal branch of the facial nerve...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Sang-Yun Kim, Young-Kyun Kim, Pil-Young Yun, Ji-Hyun Bae
Background: The purpose of this study was to evaluate the clinical outcomes of treatment of non-odontogenic atypical orofacial pain using botulinum toxin-A. Methods: This study involved seven patients (seven females, mean age 65.1 years) who had non-odontogenic orofacial pain (neuropathic pain and atypical orofacial pain) and visited the Seoul National University Bundang Hospital between 2015 and 2017. All medication therapies were preceded by botulinum toxin-A injections, followed by injections in the insignificant effects of medication therapies...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Angelos Mantelakis, Michalis Iosifidis, Zaid B Al-Bitar, Vyron Antoniadis, David Wertheim, Umberto Garagiola, Farhad B Naini
Background: In the absence of clear guidelines for facial aesthetic surgery, most surgeons rely on expert intuitive judgement when planning aesthetic and reconstructive surgery. One of the most famous theories regarding "ideal" facial proportions is that of the golden proportion. However, there are conflicting opinions as to whether it can be used to assess facial attractiveness. The aim of this investigation was to assess facial ratios of professional black models and to compare the ratios with the golden proportion...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Kwang-Jun Kwon, Hyun Seok, Jang-Ha Lee, Min-Keun Kim, Seong-Gon Kim, Hyung-Ki Park, Hang-Moon Choi
Background: Calcium pyrophosphate dihydrate deposition disease (CPDD) is a rare disease in the temporomandibular joint (TMJ) space. It forms a calcified crystal mass and induces a limitation of joint movement. Case presentation: The calcified mass in our case was occupied in the left TMJ area and extended to the infratemporal and middle cranial fossa. For a complete excision of this mass, we performed a vertical ramus osteotomy and resected the mass around the mandibular condyle...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Yu-Jeong Shin, Yongsoo Kim
Background: Velopharyngeal insufficiency that accompanies speech resonance and articulation disorders can be managed through several intervention methods such as speech-language therapy, prosthetic aids, and surgery. However, for patients with severe hypernasality, surgical interventions are highly recommended. Among available surgical techniques, the posterior pharyngeal flap is most common. Case presentation: Two adult males with high nasalance scores underwent superiorly based posterior pharyngeal flap surgery, followed by speech testing by an expert speech-language therapist...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Philipp Kauffmann, Robert Cordesmeyer, Giséle Awondzeko Fouellefack, Boris Schminke, Karl-Günther Wiese
Background: Clefts in newborns are associated with severe morphological and functional impairment. Especially the lip is of importance as if the treatment result is unsatisfactory, it can lead to psychological changes in the patient. Different operative procedures have been developed over the last decades. The aim of the presented study was the comparison of the surgical techniques according to Millard and Pfeifer regarding the temporal development of the postoperative symmetry of the lip height and mouth width...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Gian Paolo Bombeccari, Umberto Garagiola, Valentina Candotto, Francesco Pallotti, Francesco Carinci, Aldo Bruno Giannì, Francesco Spadari
Background: Proliferative verrucous leukoplakia (PVL) is an oral potentially malignant disorder, characterized by multifocal expression, progressive clinical evolution, and a high rate of malignant transformation. Evidence-based information regarding optimal PVL management is lacking, due to the paucity of data. The present report describes a case of PVL associated with HPV-16 infection and epithelial dysplasia treated by diode laser surgery, and the outcome of disease clinical remission over a 2-year follow-up period...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Jin Hoo Park, Hwi-Dong Jung, Hyung Jun Kim, Young-Soo Jung
Background: The purpose of this study was to identify the location of the antilingula, lingula, and mandibular foramen in Korean cadavers and to promote safe and accurate surgery without damage to the inferior alveolar neurovascular bundle (IANB) when performing a vertical ramus osteotomy (VRO). Methods: This study was conducted on the dried mandibles of 20 adult cadavers. Digital calipers were used to measure the distances from the anatomical reference points (antilingula, lingula, and mandibular foramen)...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Chul-Hong Koo, Jae-Hoon Lee
Background: Bisphosphonate (BP) has the ability to thicken the cortical bone. In addition, it has been reported that the cortical bone thickened by BP has relation to the medication-related osteonecrosis of the jaw (MRONJ). Therefore, the objective of this article is to analyze the ratio as well as thickness of cortical bone in the mandible using computed tomography (CT) and to evaluate it as the predictive factor of MRONJ. Methods: The thickness of the cortical bone was measured on a paraxial view of the CT showing the mental foramen in 95 patients: 33 patients with MRONJ (3 males, 30 females), 30 patients taking BP without MRONJ (2 males, 28 females), and 32 controls (9 males, 28 females)...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Tae-Geon Kwon
No abstract text is available yet for this article.
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Byung-Joon Choi, Byung-Soo Kim, Ji-Min Lim, Junho Jung, Jung-Woo Lee, Joo-Young Ohe
Background: We evaluated change in the mandibular condyle after orthognathic surgery using cone-beam computed tomography (CBCT) in patients with facial asymmetry. Methods: Thirty patients with skeletal class III malocclusion and mandibular prognathism or facial asymmetry were classified into two groups according to the amount of menton deviation (MD) from the facial midline on anteroposterior (AP) cephalogram: group A (asymmetry, MD ≥ 4 mm; n  = 15) and group B (symmetry, MD < 4 mm; n  = 15)...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Dae-Seok Hwang, Jinyoung Park, Uk-Kyu Kim, Hae-Ryoun Park, Gyoo-Cheon Kim, Mi-Heon Ryu
Background: Squamous cell carcinoma (SCC) is the most commonly occurring malignant tumor in the oral cavity. In South Korea, it occurs most frequently in the mandible, tongue, maxilla, buccal mucosa, other areas of the oral cavity, and lips. Radial forearm free flap (RFFF) is the most widely used reconstruction method for the buccal mucosal defect. The scar of the forearm donor, however, is highly visible and unsightly, and a secondary surgical site is needed when such technique is applied...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Ju-Won Kim, You-Young Jo, Hae Yong Kweon, Dae-Won Kim, Seong-Gon Kim
Background: The objective of this study was to evaluate the changes in gene expression after incubation of cells with proteins released from different silk mat layers. Methods: A silk cocoon from Bombyx mori was separated into four layers of equal thickness. The layers were numbered from 1 to 4 (from the inner to the outer layer). The proteins were released by sonication of a silk mat layer in normal saline. The concentration of proteins was determined by spectrophotometry...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Sung-Tak Lee, Malavika Geetha Subu, Tae-Geon Kwon
Background: Subcutaneous emphysema refers to swelling caused by the presence of air or gas in the interstices of loose connective tissue. In the head and neck area, it may follow the fascial planes and is characterized by sudden swelling, crepitus on palpation, infrequent pain, and air emboli on radiography. It usually occurs as a complication in dental treatment. Some reports have described subcutaneous emphysema caused by dental procedures; however, severe emphysema related to peri-implantitis after treatment has not been documented...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Ji-Hyeon Oh, Young-Wook Park
Background: Bilateral Tessier number 3 clefts are extremely rare, and their surgical treatments have not been well established. Case presentation: The authors describe the case of a patient with a right Tessier number 3, 11 facial cleft with microphthalmia, a left Tessier number 3 facial cleft with anophthalmia, and cleft palate. We repaired simultaneously the bilateral soft tissue clefts by premaxillary repositioning, cleft lip repair, facial cleft repair by nasal lengthening, midfacial advancement, and an upper eyelid transposition flap with repositioning both the medial canthi...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Sang Ho Jun, Chang-Joo Park, Suk-Hyun Hwang, Youn Ki Lee, Cong Zhou, Hyon-Seok Jang, Jae-Jun Ryu
Background: This study was to evaluate the effect of bone graft procedure on the primary stability of implants installed in fresh sockets and assess the vertical alteration of peri-implant bone radiographically. Methods: Twenty-three implants were inserted in 18 patients immediately after tooth extraction. The horizontal gap between the implant and bony walls of the extraction socket was grafted with xenografts. The implant stability before and after graft procedure was measured by Osstell Mentor as implant stability quotient before bone graft (ISQ bbg) and implant stability quotient after bone graft (ISQ abg)...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Sunin Yang, Yu-Jin Jee, Dong-Mok Ryu
Background: Oroantral communicating defects, characterized by a connection between the maxillary sinus and the oral cavity, are often induced by tooth extraction, removal of cysts and benign tumors, and resection of malignant tumors. The surgical defect may develop into an oroantral fistula, with resultant patient discomfort and chronic maxillary sinusitis. Small defects may close spontaneously; however, large oroantral defects generally require reconstruction. These large defects can be reconstructed with skin grafts and vascularized free flaps with or without bone graft...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
Hyun Seok, Seong-Gon Kim, Min-Keun Kim, Insan Jang, Janghoon Ahn
Background: The objective of this study was to evaluate the influence of masticatory muscle injection of botulinum toxin type A (BTX-A) on the growth of the mandibular bone in vivo. Methods: Eleven Sprague-Dawley rats were used, and BTX-A ( n  = 6) or saline ( n  = 5) was injected at 13 days of age. All injections were given to the right masseter muscle, and the BTX-A dose was 0.5 units. All of the rats were euthanized at 60 days of age. The skulls of the rats were separated and fixed with 10% formalin for micro-computed tomography (micro-CT) analysis...
December 2018: Maxillofacial Plastic and Reconstructive Surgery
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