13 research outputs found

    Improving accuracy of the intermediate splint in substantial intermaxillary sagittal discrepancies using an extra anterior anchorage point:technical note

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    To describe a technical feature that increases the stability of the intermediate splint in patients where bimaxillary surgery with great maxillary/mandibular advancements are planned. Prospective evaluation of the intermediate splint dental vertical penetration in patients undergoing bimaxillary surgery where great sagittal discrepancy occur in the anterior sector between the upper and lower jaws when the intermediate splint is placed by adding an extra intermaxillary fixation (IMF) screw (2x9 mm) placed between the central incisors of the maxilla and fixed to the most anterior aspect of the intermediate splint following the direction of the sagittal maxillo-mandibular discrepancy from January to September 2018. The postoperative evaluation comparing the accuracy of conventional fixation versus fixation with an extra anterior anchorage point through photographic assessment and intraoral digital scanner demonstrated better dental penetration, and therefore improved intermediate splint precision with the latter in all cases Our results suggest that this is a simple and safe technique that can be easily reproduced and optimizes the outcomes by increasing the accuracy of translation of the planned surgical movements to the operating room

    Virus Papiloma Humano en el carcinoma escamoso de cabeza y cuello

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    Els carcinomes de c猫l路lules escamoses de cap i coll (CCECC) estan relacionats en un 80% dels casos amb el tabac i/o l'alcohol. Per altra banda, la infecci贸 per virus papil路loma hum脿 (VPH), la malaltia de transmissi贸 sexual m茅s freq眉ent als Estats Units actualment, ha resultat ser oncog猫nica no nom茅s a nivell genital sin贸 tamb茅 a nivell del tracte aero-digestiu superior, sobretot a oro-faringe. Els estudis realitzats a posteriori han demostrat que els pacients amb CCECC VPH+ no fumadors ni bebedors, solen ser m茅s joves, presentar diferents marcadors tumorals, respondre m茅s al tractament i tenir millor pron貌stic.Los carcinomas de c茅lulas escamosas de cabeza y cuello (CCECC) est谩n relacionados en un 80% de los casos con el tabaco y/o el alcohol. Por otro lado la infecci贸n por virus papiloma humano (VPH), la enfermedad de transmisi贸n sexual m谩s frecuente en Estados Unidos actualmente, ha resultado ser oncog茅nica no s贸lo a nivel genital si no tambi茅n a nivel del trato a茅reo-digestivo superior, sobretodo en oro-faringe. Los estudios realizados a posteriori han demostrado que los pacientes con CCECC VPH+ no fumadores ni bebedores, suelen ser m谩s j贸venes, presentar distintos marcadores tumorales, responder m谩s al tratamiento y tener mejor pron贸stico

    Virus papil路loma hum脿 en el carcinoma de cap i coll

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    El carcinoma de c茅lulas escamosas de cabeza y cuello es una neoplasia maligna que deriva del epitelio escamoso y se caracteriza por su etiopatogenia multifactorial. A pesar de que el tabaco y el alcohol son los factores de riesgo m谩s extendidos, actualmente es tambi茅n reconocida la relaci贸n del virus papiloma humano (VPH) con el carcinoma escamoso de cabeza y cuello (CECC), aunque su impacto real a煤n est谩 en estudio. Su incidencia, pron贸stico e implicaciones terap茅uticas permanecen todav铆a en controversia. Por ello, hemos desarrollado el presente estudio a fin de demostrar la relaci贸n del VPH con el CECC, el cual consiste en la valoraci贸n de 156 pacientes tratados en la Unidad de Oncolog铆a de Cabeza y Cuello del Hospital Vall d鈥橦ebron desde noviembre de 2009 hasta diciembre de 2010. Se han recogido los datos epidemiol贸gicos, cl铆nicos e histol贸gicos de cada paciente, se han agrupado los pacientes seg煤n el resultado para el VPH y a continuaci贸n se han comparado estad铆sticamente los dos grupos. Los resultados han demostrado que el CECC VPH+ es m谩s frecuente en orofaringe, que los hombres tienen m谩s incidencia de estos tumores, que son pacientes m谩s j贸venes y menos fumadores y/o bebedores, que tienen m谩s afectaci贸n ganglionar cervical (N2) y que los positivos con tinci贸n inmunohistoqu铆mica a p16 tienen mejor pron贸stico. En conclusi贸n, nuestro estudio ha reflejado una relaci贸n epidemiol贸gica entre el CECC y el VPH, y que el perfil del paciente VPH+ difiere del cl谩sico paciente fumador y/o bebedor. A partir del estudio, sugerimos un protocolo de detecci贸n de VPH en pacientes diagnosticados de CECC.Head and Neck Squamous Cell Carcinoma (HNSCC) is a malignancy derived from squamous epithelium and is characterized by its multifactorial etiology. Although tobacco and alcohol are the most common risk factors, it is now also accepted the relationship between human papilloma virus (HPV) and HNSCC. Its true impact is still under study; its incidence, prognosis and therapeutic implications are still in dispute. Therefore, we have developed this study to demonstrate the relationship between HPV and HNSCC, which assesses 156 patients treated in the Head and Neck Oncology Unit at the Vall d'Hebron Hospital from November 2009 to December 2010. We collected epidemiological, clinical and histological data of each patient. Patients were grouped according to the result to HPV, and then both groups were statistically compared. It has been shown that HNSCC HPV + are more frequent in the oropharynx, men have a higher incidence of these tumours, patients are younger and usually less smokers and / or drinkers, they have a higher cervical lymph node stage (N2) and patients with positive p16 staining have better prognosis. In conclusion, our study indicates an epidemiological link between HPV and HNSCC. Furthermore, +HPV patient鈥檚 profile differs from the classical profile of the smoker and / or drinker patient. From the study, we suggest a HPV detection protocol for patients diagnosed with HNSCC

    Virus Papiloma Humano en el carcinoma escamoso de cabeza y cuello

    No full text
    Els carcinomes de c猫l鈥ules escamoses de cap i coll (CCECC) estan relacionats en un 80% dels casos amb el tabac i/o l鈥檃lcohol. Per altra banda, la infecci贸 per virus papil鈥oma hum脿 (VPH), la malaltia de transmissi贸 sexual m茅s freq眉ent als Estats Units actualment, ha resultat ser oncog猫nica no nom茅s a nivell genital sin贸 tamb茅 a nivell del tracte aero-digestiu superior, sobretot a oro-faringe. Els estudis realitzats a posteriori han demostrat que els pacients amb CCECC VPH+ no fumadors ni bebedors, solen ser m茅s joves, presentar diferents marcadors tumorals, respondre m茅s al tractament i tenir millor pron貌stic.Los carcinomas de c茅lulas escamosas de cabeza y cuello (CCECC) est谩n relacionados en un 80% de los casos con el tabaco y/o el alcohol. Por otro lado la infecci贸n por virus papiloma humano (VPH), la enfermedad de transmisi贸n sexual m谩s frecuente en Estados Unidos actualmente, ha resultado ser oncog茅nica no s贸lo a nivel genital si no tambi茅n a nivel del trato a茅reo-digestivo superior, sobretodo en oro-faringe. Los estudios realizados a posteriori han demostrado que los pacientes con CCECC VPH+ no fumadores ni bebedores, suelen ser m谩s j贸venes, presentar distintos marcadores tumorales, responder m谩s al tratamiento y tener mejor pron贸stico

    Virus papil路loma hum脿 en el carcinoma de cap i coll

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    El carcinoma de c茅lulas escamosas de cabeza y cuello es una neoplasia maligna que deriva del epitelio escamoso y se caracteriza por su etiopatogenia multifactorial. A pesar de que el tabaco y el alcohol son los factores de riesgo m谩s extendidos, actualmente es tambi茅n reconocida la relaci贸n del virus papiloma humano (VPH) con el carcinoma escamoso de cabeza y cuello (CECC), aunque su impacto real a煤n est谩 en estudio. Su incidencia, pron贸stico e implicaciones terap茅uticas permanecen todav铆a en controversia. Por ello, hemos desarrollado el presente estudio a fin de demostrar la relaci贸n del VPH con el CECC, el cual consiste en la valoraci贸n de 156 pacientes tratados en la Unidad de Oncolog铆a de Cabeza y Cuello del Hospital Vall d'Hebron desde noviembre de 2009 hasta diciembre de 2010. Se han recogido los datos epidemiol贸gicos, cl铆nicos e histol贸gicos de cada paciente, se han agrupado los pacientes seg煤n el resultado para el VPH y a continuaci贸n se han comparado estad铆sticamente los dos grupos. Los resultados han demostrado que el CECC VPH+ es m谩s frecuente en orofaringe, que los hombres tienen m谩s incidencia de estos tumores, que son pacientes m谩s j贸venes y menos fumadores y/o bebedores, que tienen m谩s afectaci贸n ganglionar cervical (N2) y que los positivos con tinci贸n inmunohistoqu铆mica a p16 tienen mejor pron贸stico. En conclusi贸n, nuestro estudio ha reflejado una relaci贸n epidemiol贸gica entre el CECC y el VPH, y que el perfil del paciente VPH+ difiere del cl谩sico paciente fumador y/o bebedor. A partir del estudio, sugerimos un protocolo de detecci贸n de VPH en pacientes diagnosticados de CECC.Head and Neck Squamous Cell Carcinoma (HNSCC) is a malignancy derived from squamous epithelium and is characterized by its multifactorial etiology. Although tobacco and alcohol are the most common risk factors, it is now also accepted the relationship between human papilloma virus (HPV) and HNSCC. Its true impact is still under study; its incidence, prognosis and therapeutic implications are still in dispute. Therefore, we have developed this study to demonstrate the relationship between HPV and HNSCC, which assesses 156 patients treated in the Head and Neck Oncology Unit at the Vall d'Hebron Hospital from November 2009 to December 2010. We collected epidemiological, clinical and histological data of each patient. Patients were grouped according to the result to HPV, and then both groups were statistically compared. It has been shown that HNSCC HPV + are more frequent in the oropharynx, men have a higher incidence of these tumours, patients are younger and usually less smokers and / or drinkers, they have a higher cervical lymph node stage (N2) and patients with positive p16 staining have better prognosis. In conclusion, our study indicates an epidemiological link between HPV and HNSCC. Furthermore, +HPV patient's profile differs from the classical profile of the smoker and / or drinker patient. From the study, we suggest a HPV detection protocol for patients diagnosed with HNSCC

    Accuracy of Orthognathic Surgical Planning using Three-dimensional Virtual Techniques compared with Conventional Two-dimensional Techniques: a Systematic Review

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    Objectives: The objective was to assess the accuracy of orthognathic surgical planning using three-dimensional virtual planning compared with conventional two-dimensional planning. Material and Methods: MEDLINE (PubMed), Embase and Cochrane Library search combined with hand-search of relevant journals was conducted to identify randomized controlled trials (RCTs) published in English through August 2nd, 2022. Primary outcomes included postsurgical accuracy of hard and soft tissue. Secondary outcomes included treatment planning time, intraoperative time, intraoperative blood loss, complications, financial expenses, and patient-reported outcome measures (PROMs). Quality and risk-of-bias assessment were evaluated by Cochrane risk of bias tool and GRADE system. Results: Seven RCTs characterised by low, high, and unclear risk of bias fulfilled inclusion criteria. Included studies disclosed conflicting results regarding accuracy of hard and soft tissue as well as treatment planning time. The intraoperative time was shortened, and financial expenses were increased with three-dimensional virtual surgical planning (TVSP), while no planning-related complications were revealed. Comparable improvement in PROMs were reported with TVSP and two-dimensional planning. Conclusions: Future orthognathic surgical planning will indisputable be performed by three-dimensional virtual planning. The financial expenses, treatment planning time, and intraoperative time will therefore probably decrease due to further development of three-dimensional virtual planning techniques. The hard and soft tissue accuracy between planned position and achieved surgical outcome seems to be improved by three-dimensional virtual planning compared with two-dimensional planning, although results are inconsistent. Further development of three-dimensional virtual planning involving cutting guides and patient-specific osteosynthesis plates are therefore needed to improve the accuracy of orthognathic surgical planning

    Virtual surgical planning in orthognathic surgery with the use of patient-specific plates compared with conventional plates. A systematic review focusing on complications, financial expenses, professional and patient-reported outcome measures

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    BACKGROUND: Orthognathic surgery is a well-known surgical procedure for correction of facial deformities. The surgical procedure is performed by the use of conventional plates and by patient-specific osteosynthesis plates (PSOPs). The aim of this study is to investigate any differences in complications, financial expenses, professional and patient-reported outcome measures (PROM) in orthognathic surgery performed by conventional plates and by PSOPs. MATERIAL AND METHODS: A MEDLINE (PubMed), Embase, and Cochrane Library search was conducted. Human studies published in English through August 27, 2020 were included. Grey literature, unpublished literature as well as other databases like Scopus, Google Scholar, or Research Gate were also included in the search strategy of the present systematic review. Randomized and controlled clinical trials were included. Risk of bias was assessed by Cochrane risk of bias tool and Newcastle-Ottawa Scale. RESULTS: Five studies with unclear risk of bias and moderate quality were included. Meta-analysis was not applicable due to considerable heterogeneity. There was no significant difference in intra- and postoperative complications or professional and PROM with the two treatment modalities, although higher tendencies to reoperations were observed with conventional plates. Financial expenses were significantly higher with PSOP, but treatment planning and intraoperative time were shortened by approximately one third compared with mock surgery and conventional plates. CONCLUSIONS: No significant differences were observed in complications, professional and PROM. Higher financial expenses were recorded in orthognathic surgery performed with PSOP. Treatment planning and intraoperative time were shortened with the use of conventional plates. Although further randomized trials are needed before definite conclusions can be provided about beneficial use of PSOPs in orthognathic surgery from a professional and patient perspective. Key words:Orthognathic surgery, systematic review, virtual planning

    Virus Papiloma Humano en el carcinoma escamoso de cabeza y cuello

    No full text
    Els carcinomes de c猫l路lules escamoses de cap i coll (CCECC) estan relacionats en un 80% dels casos amb el tabac i/o l'alcohol. Per altra banda, la infecci贸 per virus papil路loma hum脿 (VPH), la malaltia de transmissi贸 sexual m茅s freq眉ent als Estats Units actualment, ha resultat ser oncog猫nica no nom茅s a nivell genital sin贸 tamb茅 a nivell del tracte aero-digestiu superior, sobretot a oro-faringe. Els estudis realitzats a posteriori han demostrat que els pacients amb CCECC VPH+ no fumadors ni bebedors, solen ser m茅s joves, presentar diferents marcadors tumorals, respondre m茅s al tractament i tenir millor pron貌stic.Los carcinomas de c茅lulas escamosas de cabeza y cuello (CCECC) est谩n relacionados en un 80% de los casos con el tabaco y/o el alcohol. Por otro lado la infecci贸n por virus papiloma humano (VPH), la enfermedad de transmisi贸n sexual m谩s frecuente en Estados Unidos actualmente, ha resultado ser oncog茅nica no s贸lo a nivel genital si no tambi茅n a nivel del trato a茅reo-digestivo superior, sobretodo en oro-faringe. Los estudios realizados a posteriori han demostrado que los pacientes con CCECC VPH+ no fumadores ni bebedores, suelen ser m谩s j贸venes, presentar distintos marcadores tumorales, responder m谩s al tratamiento y tener mejor pron贸stico
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