Papers by Dennis-duke Yamashita
Journal - California Dental Association, 1977
Journal of Oral and Maxillofacial Surgery, 2004
Cosmetic surgery to rejuvenate the aging face including surgical procedures to augment and rejuve... more Cosmetic surgery to rejuvenate the aging face including surgical procedures to augment and rejuvenate the lips, will be discussed. Oral and maxillofacial surgeons are in a unique position to evaluate and manage patients seeking facial rejuvenation and cosmetic treatment. Facial cosmetic surgery represents a natural extension and a complement to our orthognathic skills. Most of our treatment decisions regarding orthognathic procedures are predicated on existing facial esthetic norms and cephalometric analysis. The oral and maxillofacial surgeon is also able to provide esthetic services on a routine basis in an outpatient setting using local anesthesia with intravenous sedation. There are a number of methods and techniques used to augment, recontour, or rejuvenate the lips and the face. These include implantation of alloplastic materials, grafting of autologous tissues, and recontouring of adjacent hard and soft tissues. We will discuss patient selection, augmentation materials, anesthetic technique, operative technique, and postoperative management associated with the procedures. This presentation is intended to be an introduction and brief overview of procedures utilized in my practice that can easily be incorporated into the practice of most oral and maxillofacial surgeons. References
Substance Abuse, 2010
Many injuries due to interpersonal violence among patients presenting to urban trauma centers for... more Many injuries due to interpersonal violence among patients presenting to urban trauma centers for treatment are preventable, with alcohol and illicit drug use presenting as common antecedent risk factors. However, many patients with such problems do not seek treatment. Substance use patients were surveyed to determine how many recognized they had a problem and whether they had previously received treatment for substance use problems. Almost 60% of the patients treated for a facial injury screened for problem alcohol use, and slightly more than 25% screened for problem drug use. Only approximately one-third of patients indicated any movement towards dealing with these problems and of these, only 20% had actually sought treatment. Employment had an effect on treatment seeking, with fewer employed patients seeking help. Utilizing the critical window of opportunity for ED personnel to make referrals may have an impact on treatment seeking for problem level substance use.
Psychology, Health & Medicine, 2010
Ethnic minority youth living in urban areas experience disproportionately high rates of violent i... more Ethnic minority youth living in urban areas experience disproportionately high rates of violent intentional injuries. This study investigates the association of violent intentional injuries with psychological distress and alcohol use among adolescents treated in trauma centers for facial injuries. Interviews were conducted with 67 adolescents treated at two urban trauma centers (predominantly male [86%], and minority [Latino, 72%; African American, 19%]). Adolescents reported experiencing several different types of accidental and assault-related injuries that required medical attention in the past six months. About half (53%) reported experiencing only unintentional injuries (e.g., car accidents, falls, sports injury); 23% experienced one type of intentional injury resulting from either fighting or being attacked; and 24% experienced two types of intentional injuries resulting from both fighting and being attacked. Measures of alcohol use and psychological distress were examined in relation to these three types of injuries. Overall, 30% of study participants reported they had been drinking alcohol at the time of injury. Compared to adolescents without intentional injuries, those who experienced a physical fight and/or attack had higher levels of alcohol problems, depression, paranoia and somatic symptoms, and were more likely to have family members with alcohol problems. There is a considerable need for adolescents with intentional assault-related injuries to be screened for alcohol and mental health problems, and to be referred for appropriate treatment interventions if they score at problem levels.
Plastic and Reconstructive Surgery, 2002
Bidirectional or multidirectional distraction devices are commercially available to adjust for le... more Bidirectional or multidirectional distraction devices are commercially available to adjust for lengthening in two or more directions. 2,3 However, even these devices can result in open bite or lateral side effects at the end of distraction because it is difficult to predict the exact path a segment ...
The Journal of Trauma: Injury, Infection, and Critical Care, 2008
Background-Patients with orofacial injury face significant mental health issues, yet few obtain m... more Background-Patients with orofacial injury face significant mental health issues, yet few obtain mental health services. The goals of this study were twofold: (1) compare the perspectives of providers and patients with documented mental health service needs regarding psychosocial aftercare; and (2) identify factors that impede or facilitate aftercare participation.
The Journal of Trauma: Injury, Infection, and Critical Care, 2004
Wolters Kluwer Health may email you for journal alerts and information, but is committed to maint... more Wolters Kluwer Health may email you for journal alerts and information, but is committed to maintaining your privacy and will not share your personal information without your express consent. For more information, please refer to our Privacy Policy. ... Skip Navigation Links Home > March ...
Journal of Oral and Maxillofacial Surgery, 2007
Purpose: Vulnerable populations are at particular risk for developing psychosocial sequelae after... more Purpose: Vulnerable populations are at particular risk for developing psychosocial sequelae after they experience orofacial injury. To enhance understanding of awareness, perspectives, and beliefs regarding attendant psychosocial issues, surgeons who provide orofacial injury care to indigent patients were surveyed. Materials and Methods: We surveyed 26 oral and maxillofacial surgeons and 15 otolaryngology surgeons at a large, urban, Level 1 trauma center. The survey, which measured providers' perceptions of pertinent contextual elements and patients' psychosocial needs after assaultive orofacial injury, was based on semistructured interviews with 15 oral and maxillofacial surgeons. The overall survey response rate was 85.4% (35 of 41). Results: Respondents ranked interpersonal violence as the dominant cause of orofacial injury among patients. Anxiety (eg, post-traumatic stress), depression, and legal issues were the most significant psychosocial sequelae identified by respondents. Alcohol abuse, drug abuse, and homelessness were identified as the most important contributors to orofacial reinjury and patient noncompliance with postsurgical instructions. Less than half of respondents (44.7%) believed that patients' problems with depression, anxiety, or substance abuse were currently addressed in an adequate way in the hospital. The vast majority (94.7%) believed that a psychosocial aftercare program was needed, and most agreed that such a program would decrease the risk of reinjury and would promote patient compliance with aftercare instructions and return for scheduled follow-up care. Respondents identified the specialty mental health service in their hospital or a community-based setting as the preferred locations for such a program, and they indicated that lack of financial resources and trained personnel were the most significant barriers to implementation of such a program within the setting of trauma services. Conclusions: Surgeons who provide care to indigent patients with orofacial injury perceive a great need for psychosocial aftercare programs for patients, and they believe that such programs could reduce the risk of reinjury and promote patient compliance.
Journal of Oral and Maxillofacial Surgery, 2007
Journal of Oral and Maxillofacial Surgery, 2007
Journal of Oral and Maxillofacial Surgery, 2008
Journal of Oral and Maxillofacial Surgery, 2011
Purpose-The proximate use of illicit drugs or alcohol (substance use) is the most common precipit... more Purpose-The proximate use of illicit drugs or alcohol (substance use) is the most common precipitator of facial injuries among socioeconomically disadvantaged populations. Reducing these risky behaviors could minimize adverse health sequelae and potential reinjury. The objective of our study was to test whether a culturally competent, personalized motivational intervention incorporated into surgical care could significantly reduce existing substance use behaviors in facial injury patients.
Journal of Oral and Maxillofacial Surgery, 2007
Journal of Oral and Maxillofacial Surgery, 2008
Ectodermal dysplasia is a syndrome in which 2 ectodermally derived structures fail to develop. Pa... more Ectodermal dysplasia is a syndrome in which 2 ectodermally derived structures fail to develop. Patients have a reduced number of teeth, and dental implant reconstruction is the preferred method of replacing teeth. We report the use of the tent pole technique in the severely resorbed mandible with sinus lifts and block grafting in the maxilla to restore the maxillofacial complex of a female patient with ectodermal dysplasia. The treatment sequence and techniques are discussed.
Journal of Oral and Maxillofacial Surgery, 2009
Purpose-Assault is the most common cause of facial injuries in adolescents treated at inner-city ... more Purpose-Assault is the most common cause of facial injuries in adolescents treated at inner-city trauma centers, yet little is known about the behavioral and environmental antecedents of these injuries or the willingness of such at-risk adolescents to participate in behavioral interventions to minimize re-injury. The purpose of this study was to identify possible risk and protective factors among adolescents with assault-related facial injury, and assess their willingness to participate in prospective observational research and behavioral interventions.
Journal of Oral and Maxillofacial Surgery, 2008
BACKGROUND-Clinician records are the primary information source for assessing of the quality of f... more BACKGROUND-Clinician records are the primary information source for assessing of the quality of facial injury care, billing, risk management, planning of health services, and health-system management and reporting. Inaccuracies obscure outcomes assessment and affect the planning of health services.
Journal of Oral and Maxillofacial Surgery, 2010
Journal of Craniofacial Surgery, 2007
ABSTRACT Distraction osteogenesis is a useful technique in temporomandibular joint reconstruction... more ABSTRACT Distraction osteogenesis is a useful technique in temporomandibular joint reconstruction after gap arthroplasty for ankylosis. We report a case of unilateral facial nerve paralysis during the distraction phase of treatment in a patient with temporomandibular joint ankylosis who was treated with gap arthroplasty and distraction osteogenesis. The clinical course is described and discussed.
Journal of Craniofacial Surgery, 2009
We describe a technique in which osseointegrated implants are used as anchors to support a custom... more We describe a technique in which osseointegrated implants are used as anchors to support a custom-fabricated distraction device to advance the deficient anterior maxilla. The absolute rigidity of osseointegrated implants in bone provides stable anchorage for successful distraction.
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Papers by Dennis-duke Yamashita