- Email: [email protected]
Structural analysis of salivary calculi
Oral Presentation The photograph record of these cases acknowledges the difficulties and possible pitfalls in the assessment of basal cell tumors. They also provide a frame for discussion on whether the actual benign classification in the 3rd edition of International Classification of Diseases for Oncology is adequate for the membranous subtype. http://dx.doi.org/10.1016/j.ijom.2015.08.724 Structural analysis of salivary calculi M. Oliveira 1,∗ , P. Nolasco 2 , C. Coelho 1 , P. Carvalho 2 , P.V. Coelho 1 1
Centro Hospitalar Lisboa Central, Lisbon, Portugal Instituto Superior Técnico-University of Lisbon, Lisbon, Portugal
2
Background: Sialolithiasis has a prevalence varying from 0.1% to 1%. Lithotripsy is intended to fragment larger stones to ease their natural expulsion or endoscopic extraction. Extracorporeal shock waves, intraductal laser and piezoeletric have different fragmentation success rates. Photothermal laser seems to be the most effective, but it is still costly, time consuming and not free from of possible complications. Objective: Characterize the sialolith morphology. Methods: 30 sialoliths were entirely removed through classical open surgical approaches. Structural and chemical characterization has been carried out by scanning and transmission electron microscopy, combined with energy dispersive spectroscopy. Local hardness has been assessed with microindentation tests. Then, an ex vivo YAG laser lithotripsy has been performed and their fragments analysed. Findings: Sialoliths have one highly mineralized core with subsequent layers of variable mineralization, with globular dispersion of organic matter. According to their mineral amount and layers display, sialoliths than can be roughly classified into four subtypes. Organic matter is rich in sulfur. The mineralized areas show a Ca and P based crystals similar to hydroxyapatite. Mineral nucleation occur at organic globular interface, dependent on local chemistry. Conclusion: There is morphological variability of sialoliths, namely at their mineral amount and display, which is probably accounting for the divergent effectiveness of lithotripsy methods. Therefore, morphological information seems a basic research line for lithotripsy physics advancement and more successful patient selection for such therapy. http://dx.doi.org/10.1016/j.ijom.2015.08.725 The relationship between facial fractures and country of birth in the Western corridors of Melbourne; a retrospective audit J.B. Olsen 1,2,∗ , K.H. Lee 2,3 , A. Chandu 1,2,3 1
The University of Melbourne, Melbourne, Victoria, Australia Footscray and Sunshine Public Hospitals, Western Health, Victoria, Australia 3 ANZAOMS the Australian and New Zealand Association of Oral and Maxillofacial Surgeons, Australia
e119
Objectives: This study aims to examine facial trauma presentation to Western Health with particular emphasis on patient ethnic background and injury mechanism. Alcohol involvement will also be recorded. Methods: Study objects were patients admitted at Western Health with diagnosed facial fractures from 2012 to 2014. Clinical notes were examined and variables recorded included age, gender, injury (ies), country of birth, injury mechanism, alcohol involvement and management. Data was analysed using simple regression analysis with SPSS package software. Results: Over thirty percent of patients presenting with facial fractures in Western Melbourne are born outside Australia. Mandibular fractures are common. Alcohol is frequently involved but often omitted from emergency notes. Assault and sporting injuries are more common under forty years of age, whereas fractures due to falls are more common over sixty-five. Conclusions: Preliminary findings show an urgent need for cultural awareness in Victorian hospital staff in managing facial trauma patients and highlight the importance of alcohol screening in the acute care setting. http://dx.doi.org/10.1016/j.ijom.2015.08.726 Indications for removal of impacted mandibular third molars: a single institutional experience in Libya H.A. Orafi 1,∗ , R. Elgehani 2 , S. Krishnan 2 1 2
Jordan University of Science and Technology, Jordan Benghazi Dental School & Hospital, Libya
Aims: to investigate the various indications for the removal of impacted lower third molars in Libya. Methods: The records of all patients who underwent a surgical removal of a lower third molar over a 3 year period were reviewed retrospectively. The indications for removal were classified into 10 groups. Radiographs were also studied to determine angular position as well as pathologies associated with such teeth. Age, gender and chief complaint were recorded. Results: The results were based on the data of 439 patients who had their molars removed (male – 183: female – 256). 61% of patients were in the age groups 15–24. Recurrent pericoronitis was the most common indication recorded (54%), followed by pulpitis/caries of the 3rd/2nd molar (31%). Orthodontic reasons (2%) and cysts/tumours (5%). Pain and tenderness was recorded as the most common symptom. The relative absence of prophylactic removal as an indication could be attributed to socioeconomic and logistic reasons. Conclusion: Awareness of the indications for removal of impacted lower third molars will help in the management. Fear of dentistry appears to be responsible for patients reporting to the surgeon only when symptoms occur. Patients generally do not agree to prophylactic removal of lower third molars. Removal of only symptomatic lower third molars seems to be the only logical choice.
2
Background: Facial trauma epidemiology is widely reported in literature. It is well established that facial fractures have a male predilection and are positively associated with road trauma and interpersonal violence.
http://dx.doi.org/10.1016/j.ijom.2015.08.727 Mouth, jaw and face surgery: making a case for a name change A.O. Osaguona University of Benin, Benin City, Nigeria Background: There is a need to investigate the general lack of awareness of the scope of oral and maxillofacial surgery (OMFS)
Centro Hospitalar Lisboa Central, Lisbon, Portugal Instituto Superior Técnico-University of Lisbon, Lisbon, Portugal
2
Background: Sialolithiasis has a prevalence varying from 0.1% to 1%. Lithotripsy is intended to fragment larger stones to ease their natural expulsion or endoscopic extraction. Extracorporeal shock waves, intraductal laser and piezoeletric have different fragmentation success rates. Photothermal laser seems to be the most effective, but it is still costly, time consuming and not free from of possible complications. Objective: Characterize the sialolith morphology. Methods: 30 sialoliths were entirely removed through classical open surgical approaches. Structural and chemical characterization has been carried out by scanning and transmission electron microscopy, combined with energy dispersive spectroscopy. Local hardness has been assessed with microindentation tests. Then, an ex vivo YAG laser lithotripsy has been performed and their fragments analysed. Findings: Sialoliths have one highly mineralized core with subsequent layers of variable mineralization, with globular dispersion of organic matter. According to their mineral amount and layers display, sialoliths than can be roughly classified into four subtypes. Organic matter is rich in sulfur. The mineralized areas show a Ca and P based crystals similar to hydroxyapatite. Mineral nucleation occur at organic globular interface, dependent on local chemistry. Conclusion: There is morphological variability of sialoliths, namely at their mineral amount and display, which is probably accounting for the divergent effectiveness of lithotripsy methods. Therefore, morphological information seems a basic research line for lithotripsy physics advancement and more successful patient selection for such therapy. http://dx.doi.org/10.1016/j.ijom.2015.08.725 The relationship between facial fractures and country of birth in the Western corridors of Melbourne; a retrospective audit J.B. Olsen 1,2,∗ , K.H. Lee 2,3 , A. Chandu 1,2,3 1
The University of Melbourne, Melbourne, Victoria, Australia Footscray and Sunshine Public Hospitals, Western Health, Victoria, Australia 3 ANZAOMS the Australian and New Zealand Association of Oral and Maxillofacial Surgeons, Australia
e119
Objectives: This study aims to examine facial trauma presentation to Western Health with particular emphasis on patient ethnic background and injury mechanism. Alcohol involvement will also be recorded. Methods: Study objects were patients admitted at Western Health with diagnosed facial fractures from 2012 to 2014. Clinical notes were examined and variables recorded included age, gender, injury (ies), country of birth, injury mechanism, alcohol involvement and management. Data was analysed using simple regression analysis with SPSS package software. Results: Over thirty percent of patients presenting with facial fractures in Western Melbourne are born outside Australia. Mandibular fractures are common. Alcohol is frequently involved but often omitted from emergency notes. Assault and sporting injuries are more common under forty years of age, whereas fractures due to falls are more common over sixty-five. Conclusions: Preliminary findings show an urgent need for cultural awareness in Victorian hospital staff in managing facial trauma patients and highlight the importance of alcohol screening in the acute care setting. http://dx.doi.org/10.1016/j.ijom.2015.08.726 Indications for removal of impacted mandibular third molars: a single institutional experience in Libya H.A. Orafi 1,∗ , R. Elgehani 2 , S. Krishnan 2 1 2
Jordan University of Science and Technology, Jordan Benghazi Dental School & Hospital, Libya
Aims: to investigate the various indications for the removal of impacted lower third molars in Libya. Methods: The records of all patients who underwent a surgical removal of a lower third molar over a 3 year period were reviewed retrospectively. The indications for removal were classified into 10 groups. Radiographs were also studied to determine angular position as well as pathologies associated with such teeth. Age, gender and chief complaint were recorded. Results: The results were based on the data of 439 patients who had their molars removed (male – 183: female – 256). 61% of patients were in the age groups 15–24. Recurrent pericoronitis was the most common indication recorded (54%), followed by pulpitis/caries of the 3rd/2nd molar (31%). Orthodontic reasons (2%) and cysts/tumours (5%). Pain and tenderness was recorded as the most common symptom. The relative absence of prophylactic removal as an indication could be attributed to socioeconomic and logistic reasons. Conclusion: Awareness of the indications for removal of impacted lower third molars will help in the management. Fear of dentistry appears to be responsible for patients reporting to the surgeon only when symptoms occur. Patients generally do not agree to prophylactic removal of lower third molars. Removal of only symptomatic lower third molars seems to be the only logical choice.
2
Background: Facial trauma epidemiology is widely reported in literature. It is well established that facial fractures have a male predilection and are positively associated with road trauma and interpersonal violence.
http://dx.doi.org/10.1016/j.ijom.2015.08.727 Mouth, jaw and face surgery: making a case for a name change A.O. Osaguona University of Benin, Benin City, Nigeria Background: There is a need to investigate the general lack of awareness of the scope of oral and maxillofacial surgery (OMFS)