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Masticatory function of postoperative cancer patients
124
P26 - Poster session: Monday, April 26, 1999
the iliac crest, ribs or tibia. Soft tissue reconstruction was separately performed. Satisfactory postoperative results are presented from anatomic and aesthetic aspects, with completion of masticatory, swallowing and speech rehabilitation. In such cases of extensive facial trauma, there are few proposals for better morphological and functional results: performing Of surgical reconstruction should be as early as possible; fracture retention should be performed through rigid fixation; accurate alignment and suture of deep and superficial layers of the wound. Exact preoperative planning during the diagnostic procedure and early surgical restoration of such exceptional injuries are crucial to the successful management of these patients.
Material and methods Twelve dried human mandibles. Prior to orthopantomography (OPG) they were labeled with an orthodontic wire in the region of M F and 1 and 2 cm distally. The mandibles were then cut through the marked regions and the following distances from the MF/mandibular canal were measured: the alveolar crest, the base and the buccal and lingual aspect of the mandible. On the OPG only distances to the alveolar crest and the base were measured.
12. Masticatory Function of Postoperative Cancer Patients
Conclusions O P G is not a reliable method for the assessment of the amount of the available bone for the insertion of dental implants in the region of the mental foramen. When the distance from the mental foramen to the alveolar crest is determined at operation, it is possible to insert at least 2 mm longer implants lingually to the mental foramen.
Matsui, Y, Ohno, K., Michi, K. First Department of Oral and Maxillofacial Surgery, Showa University, Tokyo, Japan This study investigated masticatory function of oral cancer patients subjectively a n d objectively to obtain some suggestions for higher functional level in overall postoperative cancer patients. The subjects were 53 postoperative oral cancer patients, 23 male and 30 female, 41 to 85 years, averaged 63.1. Their masticatory function was evaluated subjectively with the Yamamoto's masticatory grade and objectively with Occlusal Prescale (Fuji Film Co.) and tile low adhesive color developing chewing gum method. They were also asked with the questionnaire whether they were satisfied with their functional level and desired further re= habilitative treatment. Their functional levels ranged widely from that of normal subjects to almost hard to masticate. Some patients did not want to undergo further rehabilitative management although they had very poor functional levels and/or were not satisfied with their functional states. Combined with the improvements of surgical and prosthetic techniques, further efforts to motivate them are also important for rehabilitation of overall postoperative oral cancer patients.
13. Assessment of the Available Bone in the Region of the Mental Foramen for the Insertion of Dental Implants
Stojcev, L., Stajcic, Z., Mileusnic, L, Rakoeevic, Z., Duric, M. Faculty of Stomatology, Institute of Anatomy, Faculty of Medicine, University of Belgrade, Yugoslavia Aim This paper intends to investigate the available bone in the region of the mental foramen (MF) with regard to feasibility of insertion of dental implants.
Results Mean distances between M F and the alveolar crest tile base and lingual aspects were 12.95 mm, 13.43 mm and 5.47 mm respectively. Measured at the level of M E mean distance from the mandibular canal to the alveolar crest was 15.64 and to t h e lingual cortex was 5.47. The distances measured on OPG did not correlate with those on the mandibles.
14. Clinical and Immunohistological Study on Reconstructed Flaps in the Oral Cavity
lshihara, 0., Mataga, L The Nippon Dental University, School of Dentistry at Niigata, Department of Oral and MaxillofaciaI Surgery Purpose M a n y kinds of major flaps such as pedicled and vascularized osteo/musculo/cutaneous flaps have been employed to reconstruct intraoral defects after tumor resection. Transplanted cutaneous flaps clinically show some changes such as color and scaling. Histological changes of those flaps are not examined well enough. To better understand the biological conditions of reconstructed flaps, patients in whom various periods have passed since operation were clinically observed, and biopsy specimens taken from their flaps were histologically, histochemically and immunohistochemically examined. Materials and methods Seventeen major flaps, including delto-pectoral flaps, pectoral major myocutaneous flaps and forearm flaps, were used to reconstruct intraoral defects after oral cancer ablation. Irradiated flaps were excluded in this study. Biopsy specimens were taken from both the mid-portion of each flap and the junction area between flaps and surrounding oral mucosa. Investigative procedures for these specimens were performed as follows: A fomalin-fixed specimen was dehydrated and embedded in paraffin. Hematoxylin-eosin, periodic acidSchiff with and without diastase digestion, and alcian-blue were used to stain the deparaffinized sections of the specimens. The deparaffinized sections also underwent N-(7-di-
P26 - Poster session: Monday, April 26, 1999
the iliac crest, ribs or tibia. Soft tissue reconstruction was separately performed. Satisfactory postoperative results are presented from anatomic and aesthetic aspects, with completion of masticatory, swallowing and speech rehabilitation. In such cases of extensive facial trauma, there are few proposals for better morphological and functional results: performing Of surgical reconstruction should be as early as possible; fracture retention should be performed through rigid fixation; accurate alignment and suture of deep and superficial layers of the wound. Exact preoperative planning during the diagnostic procedure and early surgical restoration of such exceptional injuries are crucial to the successful management of these patients.
Material and methods Twelve dried human mandibles. Prior to orthopantomography (OPG) they were labeled with an orthodontic wire in the region of M F and 1 and 2 cm distally. The mandibles were then cut through the marked regions and the following distances from the MF/mandibular canal were measured: the alveolar crest, the base and the buccal and lingual aspect of the mandible. On the OPG only distances to the alveolar crest and the base were measured.
12. Masticatory Function of Postoperative Cancer Patients
Conclusions O P G is not a reliable method for the assessment of the amount of the available bone for the insertion of dental implants in the region of the mental foramen. When the distance from the mental foramen to the alveolar crest is determined at operation, it is possible to insert at least 2 mm longer implants lingually to the mental foramen.
Matsui, Y, Ohno, K., Michi, K. First Department of Oral and Maxillofacial Surgery, Showa University, Tokyo, Japan This study investigated masticatory function of oral cancer patients subjectively a n d objectively to obtain some suggestions for higher functional level in overall postoperative cancer patients. The subjects were 53 postoperative oral cancer patients, 23 male and 30 female, 41 to 85 years, averaged 63.1. Their masticatory function was evaluated subjectively with the Yamamoto's masticatory grade and objectively with Occlusal Prescale (Fuji Film Co.) and tile low adhesive color developing chewing gum method. They were also asked with the questionnaire whether they were satisfied with their functional level and desired further re= habilitative treatment. Their functional levels ranged widely from that of normal subjects to almost hard to masticate. Some patients did not want to undergo further rehabilitative management although they had very poor functional levels and/or were not satisfied with their functional states. Combined with the improvements of surgical and prosthetic techniques, further efforts to motivate them are also important for rehabilitation of overall postoperative oral cancer patients.
13. Assessment of the Available Bone in the Region of the Mental Foramen for the Insertion of Dental Implants
Stojcev, L., Stajcic, Z., Mileusnic, L, Rakoeevic, Z., Duric, M. Faculty of Stomatology, Institute of Anatomy, Faculty of Medicine, University of Belgrade, Yugoslavia Aim This paper intends to investigate the available bone in the region of the mental foramen (MF) with regard to feasibility of insertion of dental implants.
Results Mean distances between M F and the alveolar crest tile base and lingual aspects were 12.95 mm, 13.43 mm and 5.47 mm respectively. Measured at the level of M E mean distance from the mandibular canal to the alveolar crest was 15.64 and to t h e lingual cortex was 5.47. The distances measured on OPG did not correlate with those on the mandibles.
14. Clinical and Immunohistological Study on Reconstructed Flaps in the Oral Cavity
lshihara, 0., Mataga, L The Nippon Dental University, School of Dentistry at Niigata, Department of Oral and MaxillofaciaI Surgery Purpose M a n y kinds of major flaps such as pedicled and vascularized osteo/musculo/cutaneous flaps have been employed to reconstruct intraoral defects after tumor resection. Transplanted cutaneous flaps clinically show some changes such as color and scaling. Histological changes of those flaps are not examined well enough. To better understand the biological conditions of reconstructed flaps, patients in whom various periods have passed since operation were clinically observed, and biopsy specimens taken from their flaps were histologically, histochemically and immunohistochemically examined. Materials and methods Seventeen major flaps, including delto-pectoral flaps, pectoral major myocutaneous flaps and forearm flaps, were used to reconstruct intraoral defects after oral cancer ablation. Irradiated flaps were excluded in this study. Biopsy specimens were taken from both the mid-portion of each flap and the junction area between flaps and surrounding oral mucosa. Investigative procedures for these specimens were performed as follows: A fomalin-fixed specimen was dehydrated and embedded in paraffin. Hematoxylin-eosin, periodic acidSchiff with and without diastase digestion, and alcian-blue were used to stain the deparaffinized sections of the specimens. The deparaffinized sections also underwent N-(7-di-