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P.173 Comparison of bone substitutes optical density alterations
Posters Conclusion: CO2 laser is a safe effective way of eradicating small haemangiomas of the lip and tongue. All treatments were performed as day cases under local anaesthesia, and were well tolerated by the patients. Only one immediate complication was noted, no long term complications were reported at follow up. Three of the patients in the series had prior treatment with cryotherapy which requires local anaesthesia, and failed to resolve their problem. Surgical excision can be complicated with bleeding intraoperatively. The benefit of CO2 laser is that it offers a relatively bloodless field, and can be used for excision just as a scalpel. We believe that it should be offered as the first line treatment for small haemangiomas of the lip or tongue.
P.172 CO2 laser for benign oral lesions – one surgeon’s practice G. Oni, S. Smith, M. Simpson, B. Monk, P. Mahaffey. Bedford NHS Trust Hospital, Bedford, UK Objectives: Between 2005 to 2007, 38 patients underwent CO2 laser surgery at Bedford Hospital Laser Centre under the care of the maxillofacial surgeons for a variety of benign oral conditions. Methods: Retrospective case note analysis of 38 patients undergoing CO2 laser for benign lesions at the Laser Centre in Bedford Hospital, UK. Results: Twenty-two were for the treatment of mucoceles, nine for haemangiomas, six for papillomas, and one for polyp. Six had previously been treated with surgical excision (1), cryotherapy (3) and with antibiotics (2). All patients were undertaken as day cases under local anaesthesia only. All had complete resolution of their symptoms. Only two (5.26%) had a complication. Both had bleeding at time of procedure requiring a suture for haemostasis. Mean follow up time 3.05 weeks, with a mean of 0.82 follow up appointments. No recurrences were recorded in the casenotes at the time of writing. Conclusion: CO2 laser is a safe effective way of eradicating minor lip and tongue conditions. It is a quick method and relatively bloodless. It is well tolerated with a negligible side effect profile. All our patients required only one treatment. All were day cases under local anaesthesia with a very short duration of follow up. The drawbacks of this mode of treatment are; the lack of a specimen for histological analysis, the surgeon needs specialist training and the accessibility of laser equipment in or near your hospital.
Oral surgery
S211
within each of five bone substitutes with t-test. Critical level was established as alpha = 5%. Results: Only optical density of Cerasorb revealed statistically significant differences between values achieved immediately postoperatively (00M) and both values 12 months postoperatively (12M, 12MA). Values for area of Cerasorb and HA-Biocer 12 months postoperatively (12MA) were significantly higher than immediately after surgery (00M). Bio-Oss, Cerasorb and HA-Biocer revealed differences between external and internal subregions. No alterations were found in BioGran. Conclusions: The optical density of Cerasorb demonstrated most significant changes 12 months postoperatively. Cerasorb therefore was proved to be most easily resorbed with simultaneous bone regeneration. Bio-Oss is not significantly resorbable but is nevertheless an osteoconductive material. Algipore and HA-Biocer are slow resorbable materials with an osteoconductive component. BioGran needs to be further investigated in terms of application in the field of oral surgery. Cerasorb is osteoconductive and is resorbed simultaneously to bone regeneration.
P.174 Conservative-surgical treatment of parodontitis M. Tkhazaplizheva, F. Batyrbekova, M. Mustafaev. KBSU, Nalchik, Russia In complex treatment of parodontitis, the purpose of surgical interference is the liquidation of a parodontal pocket. Contraindication to the operation is parodontal pocket pus secretion. Research purpose: To study the influence of combined application of ultrasound and chlorhexidine solution during the period of preparation to the surgical treatment. Materials and Methods: There were 87 patients under observation aged 40 to 55 years with chronic generalized parodontitis at the acute stage. Parodontal pockets of the first group of patients (42 patients) were washed by chlorhexidine solution 0.05%. To the second group (45 patients) – chlorhexidine solution with parallel ultrasounding was applied. Results: After the treatment in patients of the 2-nd group pain disappeared, bleeding decreased, hyperemia and oedema of parodontal pocket edge diminished, pus secretion stopped after 3−4 days, whereas in the 1-st group – only after 9−10 days. Conclusions: Combined application of ultrasound and chlorhexidine solution significantly shortens the preoperative preparation time thus enabling us to recommend this method during the period of preparation to surgical treatment.
P.173 Comparison of bone substitutes optical density alterations
P.175 Dental surgery of thromboembolic patients in low molecular-weight heparine
E. Gaszynska, M. Kozakiewicz. Medical University in Lodz Department of Cranio-Maxillofacial Surgery, Lodz, Poland
E. Marki, E. Orsi, J. Szalma, K. Nagy, L. Olasz, J. Nyarady. University of P´ecs, Department of Oral and Maxillofacial Surgery, P´ecs, Hungary
The aim of this prospective study was to evaluate optical density alteration in the area of bone substitution. Materials and Methods: The study group consisted of 108 patients presenting with bone defect in the alveolar process reconstructed with one of five bone substitutes: Bio-Oss (Biomaterials Geistlich, Wolhusen, Switzerland), Algipore (Friatec AG, Mannheim, Germany), BioGran (Orthovita, Dessel, Belgium), HA-Biocer (Chema Elektromet, Rzeszow, Poland) and Cerasorb (Curasan AG, Kleinostheim, Germany). Optical density measurements were made within the area of bone substitution on digital, intra-oral, storage phosphorus X-rays obtained under standardized conditions immediately (00M) and 12 months (12MA) after surgery. On the radiograph taken after 12 months two measurements of optical density were performed: within the area of bone substitution material only and the area matching exactly the area marked on the radiograph immediately postoperatively. Moreover each surface area was divided into external 50%, and internal 50%. Mean values of optical density were compared
Introduction: Patients undergoing oral anticoagulant therapy, generally undergo oral surgery procedures, especially teeth extractions, what may prove to be problematic. The withdrawal of anticoagulant therapy may lead to severe thromboembolic and bleeding complications. Aims: To present our further experience with the maintenance or withdrawal of anticoagulant therapy with oral coumarin-type drugs in patients with cardiovascular diseases who undergo oral surgical procedures. Patients and Methods: In this retrospective study, 380 patients taking oral coumarine were enrolled, who underwent oral surgery in the Department of Oral and Maxillofacial Surgery, between July 2004 and July 2007. Patients were referred to their general practitioner to decide if withdrawal alone or replacement with low-molecular weight heparine (lmwh) was adequate. In 310 cases coumarine was stopped, in 70 cases the anticoagulant was replaced by lmwh. The type of surgery, preoperative inter-
P.172 CO2 laser for benign oral lesions – one surgeon’s practice G. Oni, S. Smith, M. Simpson, B. Monk, P. Mahaffey. Bedford NHS Trust Hospital, Bedford, UK Objectives: Between 2005 to 2007, 38 patients underwent CO2 laser surgery at Bedford Hospital Laser Centre under the care of the maxillofacial surgeons for a variety of benign oral conditions. Methods: Retrospective case note analysis of 38 patients undergoing CO2 laser for benign lesions at the Laser Centre in Bedford Hospital, UK. Results: Twenty-two were for the treatment of mucoceles, nine for haemangiomas, six for papillomas, and one for polyp. Six had previously been treated with surgical excision (1), cryotherapy (3) and with antibiotics (2). All patients were undertaken as day cases under local anaesthesia only. All had complete resolution of their symptoms. Only two (5.26%) had a complication. Both had bleeding at time of procedure requiring a suture for haemostasis. Mean follow up time 3.05 weeks, with a mean of 0.82 follow up appointments. No recurrences were recorded in the casenotes at the time of writing. Conclusion: CO2 laser is a safe effective way of eradicating minor lip and tongue conditions. It is a quick method and relatively bloodless. It is well tolerated with a negligible side effect profile. All our patients required only one treatment. All were day cases under local anaesthesia with a very short duration of follow up. The drawbacks of this mode of treatment are; the lack of a specimen for histological analysis, the surgeon needs specialist training and the accessibility of laser equipment in or near your hospital.
Oral surgery
S211
within each of five bone substitutes with t-test. Critical level was established as alpha = 5%. Results: Only optical density of Cerasorb revealed statistically significant differences between values achieved immediately postoperatively (00M) and both values 12 months postoperatively (12M, 12MA). Values for area of Cerasorb and HA-Biocer 12 months postoperatively (12MA) were significantly higher than immediately after surgery (00M). Bio-Oss, Cerasorb and HA-Biocer revealed differences between external and internal subregions. No alterations were found in BioGran. Conclusions: The optical density of Cerasorb demonstrated most significant changes 12 months postoperatively. Cerasorb therefore was proved to be most easily resorbed with simultaneous bone regeneration. Bio-Oss is not significantly resorbable but is nevertheless an osteoconductive material. Algipore and HA-Biocer are slow resorbable materials with an osteoconductive component. BioGran needs to be further investigated in terms of application in the field of oral surgery. Cerasorb is osteoconductive and is resorbed simultaneously to bone regeneration.
P.174 Conservative-surgical treatment of parodontitis M. Tkhazaplizheva, F. Batyrbekova, M. Mustafaev. KBSU, Nalchik, Russia In complex treatment of parodontitis, the purpose of surgical interference is the liquidation of a parodontal pocket. Contraindication to the operation is parodontal pocket pus secretion. Research purpose: To study the influence of combined application of ultrasound and chlorhexidine solution during the period of preparation to the surgical treatment. Materials and Methods: There were 87 patients under observation aged 40 to 55 years with chronic generalized parodontitis at the acute stage. Parodontal pockets of the first group of patients (42 patients) were washed by chlorhexidine solution 0.05%. To the second group (45 patients) – chlorhexidine solution with parallel ultrasounding was applied. Results: After the treatment in patients of the 2-nd group pain disappeared, bleeding decreased, hyperemia and oedema of parodontal pocket edge diminished, pus secretion stopped after 3−4 days, whereas in the 1-st group – only after 9−10 days. Conclusions: Combined application of ultrasound and chlorhexidine solution significantly shortens the preoperative preparation time thus enabling us to recommend this method during the period of preparation to surgical treatment.
P.173 Comparison of bone substitutes optical density alterations
P.175 Dental surgery of thromboembolic patients in low molecular-weight heparine
E. Gaszynska, M. Kozakiewicz. Medical University in Lodz Department of Cranio-Maxillofacial Surgery, Lodz, Poland
E. Marki, E. Orsi, J. Szalma, K. Nagy, L. Olasz, J. Nyarady. University of P´ecs, Department of Oral and Maxillofacial Surgery, P´ecs, Hungary
The aim of this prospective study was to evaluate optical density alteration in the area of bone substitution. Materials and Methods: The study group consisted of 108 patients presenting with bone defect in the alveolar process reconstructed with one of five bone substitutes: Bio-Oss (Biomaterials Geistlich, Wolhusen, Switzerland), Algipore (Friatec AG, Mannheim, Germany), BioGran (Orthovita, Dessel, Belgium), HA-Biocer (Chema Elektromet, Rzeszow, Poland) and Cerasorb (Curasan AG, Kleinostheim, Germany). Optical density measurements were made within the area of bone substitution on digital, intra-oral, storage phosphorus X-rays obtained under standardized conditions immediately (00M) and 12 months (12MA) after surgery. On the radiograph taken after 12 months two measurements of optical density were performed: within the area of bone substitution material only and the area matching exactly the area marked on the radiograph immediately postoperatively. Moreover each surface area was divided into external 50%, and internal 50%. Mean values of optical density were compared
Introduction: Patients undergoing oral anticoagulant therapy, generally undergo oral surgery procedures, especially teeth extractions, what may prove to be problematic. The withdrawal of anticoagulant therapy may lead to severe thromboembolic and bleeding complications. Aims: To present our further experience with the maintenance or withdrawal of anticoagulant therapy with oral coumarin-type drugs in patients with cardiovascular diseases who undergo oral surgical procedures. Patients and Methods: In this retrospective study, 380 patients taking oral coumarine were enrolled, who underwent oral surgery in the Department of Oral and Maxillofacial Surgery, between July 2004 and July 2007. Patients were referred to their general practitioner to decide if withdrawal alone or replacement with low-molecular weight heparine (lmwh) was adequate. In 310 cases coumarine was stopped, in 70 cases the anticoagulant was replaced by lmwh. The type of surgery, preoperative inter-