Plastic surgeon and head of the craniofacial unit of State University of Río de Janeiro ( UERJ) . Full member of Brazilian Society of Plastic Surgery. Foreign member of ASPS ( American Society of Plastic surgeons ) .
Polyurethane breast implants were first introduced by Ashley (Plast Reconstr Surg 45:421-424, 197... more Polyurethane breast implants were first introduced by Ashley (Plast Reconstr Surg 45:421-424, 1970), with the intention of trying to reduce the high incidence of capsular contracture associated with smooth shelled, high gel bleed, silicone breast implants. The sterilization of the polyurethane foam in the early days was questionable. More recently, ethylene oxide (ETO)-sterilized polyurethane has been used in the manufacturing process and this has been shown to reduce the incidence of biofilm. The improved method of attachment of polyurethane onto the underlying high cohesive gel, barrier shell layered, silicone breast implants also encourages bio-integration. Polyurethane covered, cohesive gel, silicone implants have also been shown to reduce the incidence of other problems commonly associated with smooth or textured silicone implants, especially with reference to displacement, capsular contracture, seroma, reoperation, biofilm and implant rupture. Since the introduction of the conical polyurethane implant (Silimed, Brazil) into the United Kingdom in 2009 (Eurosurgical, UK), we have had the opportunity to review histology taken from the capsules of polyurethane implants in three women ranging from a few months to over 3 years after implantation. All implants had been inserted into virgin subfascial, extra-pectoral planes. The results add to the important previously described histological findings of Bassetto et al. (Aesthet Plast Surg 34:481-485, 2010). Five distinct layers are identified and reasons for the development of each layer are discussed. Breast capsule around polyurethane implants, in situ for fifteen and 20 years, has recently been obtained and analysed in Brazil, and the histology has been incorporated into this study. After 20 years, the polyurethane is almost undetectable and capsular contracture may appear. These findings contribute to our understanding of polyurethane implant safety, and give reasoning for a significant reduction in clinical capsular contracture rate, up to 10 years after implantation, compared to contemporary silicone implants. A more permanent matrix equivalent to polyurethane may be the solution for reducing long-term capsular contracture. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
International journal of growth factors and stem cells in dentistry, 2018
Reconstruction of the alveolar ridge in patients with cleft lip and palate can be a challenging p... more Reconstruction of the alveolar ridge in patients with cleft lip and palate can be a challenging procedure. This stage of the treatment allows stabilization of the dental arch, adequate dental eruption, and orthodontic movement in the area of the cleft. Hence, it should be performed before the eruption of the permanent canine. Failure mainly occurs by dehiscence, exposure, and contamination of the bone graft. Adequate dissection, the definition of anatomical planes, and precise suture are paramount for a good result. However, this is often not enough. Sometimes, there is an anatomical limitation to make a suitable soft-tissue scaffold to be filled with bone graft. The lack of a hermetic closure of the anatomical planes can lead to contamination of the graft or even prevent its accomplishment in the same surgical time. Growth factors have been widely used in dentistry, with striking results in bone and tissue regeneration. Among these, platelet-rich fibrin is distinguished by allowing it to be made an autogenous membrane. This membrane supports exposure to the oral cavity without contamination and can stimulate the healing of soft and bony tissue, acting as a physical barrier. Its use as a growth factor and protective barrier of the alveolar bone graft in patients with cleft lip and palate is a promising tool for obtaining better results.
International Journal of Growth Factors and Stem Cells in Dentistry, 2018
Reconstruction of the alveolar ridge in patients with cleft lip and palate can be a challenging p... more Reconstruction of the alveolar ridge in patients with cleft lip and palate can be a challenging procedure. This stage of the treatment allows stabilization of the dental arch, adequate dental eruption, and orthodontic movement in the area of the cleft. Hence, it should be performed before the eruption of the permanent canine. Failure mainly occurs by dehiscence, exposure, and contamination of the bone graft. Adequate dissection, the definition of anatomical planes, and precise suture are paramount for a good result. However, this is often not enough. Sometimes, there is an anatomical limitation to make a suitable soft-tissue scaffold to be filled with bone graft. The lack of a hermetic closure of the anatomical planes can lead to contamination of the graft or even prevent its accomplishment in the same surgical time. Growth factors have been widely used in dentistry, with striking results in bone and tissue regeneration. Among these, platelet-rich fibrin is distinguished by allowing...
Presented here is our experience with a new approach to abdominoplasty using a limited incision w... more Presented here is our experience with a new approach to abdominoplasty using a limited incision with liposuction. The indications and advantages of the proposed technique are discussed. The procedure was performed in 20 consecutive cases. The benefits of the procedure are the resultant natural contour of the abdominal wall and umbilicus, the maintenance of the mons pubis at its original site, and, most importantly, a limited scar.
Polyurethane breast implants were first introduced by Ashley (Plast Reconstr Surg 45:421-424, 197... more Polyurethane breast implants were first introduced by Ashley (Plast Reconstr Surg 45:421-424, 1970), with the intention of trying to reduce the high incidence of capsular contracture associated with smooth shelled, high gel bleed, silicone breast implants. The sterilization of the polyurethane foam in the early days was questionable. More recently, ethylene oxide (ETO)-sterilized polyurethane has been used in the manufacturing process and this has been shown to reduce the incidence of biofilm. The improved method of attachment of polyurethane onto the underlying high cohesive gel, barrier shell layered, silicone breast implants also encourages bio-integration. Polyurethane covered, cohesive gel, silicone implants have also been shown to reduce the incidence of other problems commonly associated with smooth or textured silicone implants, especially with reference to displacement, capsular contracture, seroma, reoperation, biofilm and implant rupture. Since the introduction of the conical polyurethane implant (Silimed, Brazil) into the United Kingdom in 2009 (Eurosurgical, UK), we have had the opportunity to review histology taken from the capsules of polyurethane implants in three women ranging from a few months to over 3 years after implantation. All implants had been inserted into virgin subfascial, extra-pectoral planes. The results add to the important previously described histological findings of Bassetto et al. (Aesthet Plast Surg 34:481-485, 2010). Five distinct layers are identified and reasons for the development of each layer are discussed. Breast capsule around polyurethane implants, in situ for fifteen and 20 years, has recently been obtained and analysed in Brazil, and the histology has been incorporated into this study. After 20 years, the polyurethane is almost undetectable and capsular contracture may appear. These findings contribute to our understanding of polyurethane implant safety, and give reasoning for a significant reduction in clinical capsular contracture rate, up to 10 years after implantation, compared to contemporary silicone implants. A more permanent matrix equivalent to polyurethane may be the solution for reducing long-term capsular contracture. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
Polyurethane breast implants were first introduced by Ashley (Plast Reconstr Surg 45:421-424, 197... more Polyurethane breast implants were first introduced by Ashley (Plast Reconstr Surg 45:421-424, 1970), with the intention of trying to reduce the high incidence of capsular contracture associated with smooth shelled, high gel bleed, silicone breast implants. The sterilization of the polyurethane foam in the early days was questionable. More recently, ethylene oxide (ETO)-sterilized polyurethane has been used in the manufacturing process and this has been shown to reduce the incidence of biofilm. The improved method of attachment of polyurethane onto the underlying high cohesive gel, barrier shell layered, silicone breast implants also encourages bio-integration. Polyurethane covered, cohesive gel, silicone implants have also been shown to reduce the incidence of other problems commonly associated with smooth or textured silicone implants, especially with reference to displacement, capsular contracture, seroma, reoperation, biofilm and implant rupture. Since the introduction of the conical polyurethane implant (Silimed, Brazil) into the United Kingdom in 2009 (Eurosurgical, UK), we have had the opportunity to review histology taken from the capsules of polyurethane implants in three women ranging from a few months to over 3 years after implantation. All implants had been inserted into virgin subfascial, extra-pectoral planes. The results add to the important previously described histological findings of Bassetto et al. (Aesthet Plast Surg 34:481-485, 2010). Five distinct layers are identified and reasons for the development of each layer are discussed. Breast capsule around polyurethane implants, in situ for fifteen and 20 years, has recently been obtained and analysed in Brazil, and the histology has been incorporated into this study. After 20 years, the polyurethane is almost undetectable and capsular contracture may appear. These findings contribute to our understanding of polyurethane implant safety, and give reasoning for a significant reduction in clinical capsular contracture rate, up to 10 years after implantation, compared to contemporary silicone implants. A more permanent matrix equivalent to polyurethane may be the solution for reducing long-term capsular contracture. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
International journal of growth factors and stem cells in dentistry, 2018
Reconstruction of the alveolar ridge in patients with cleft lip and palate can be a challenging p... more Reconstruction of the alveolar ridge in patients with cleft lip and palate can be a challenging procedure. This stage of the treatment allows stabilization of the dental arch, adequate dental eruption, and orthodontic movement in the area of the cleft. Hence, it should be performed before the eruption of the permanent canine. Failure mainly occurs by dehiscence, exposure, and contamination of the bone graft. Adequate dissection, the definition of anatomical planes, and precise suture are paramount for a good result. However, this is often not enough. Sometimes, there is an anatomical limitation to make a suitable soft-tissue scaffold to be filled with bone graft. The lack of a hermetic closure of the anatomical planes can lead to contamination of the graft or even prevent its accomplishment in the same surgical time. Growth factors have been widely used in dentistry, with striking results in bone and tissue regeneration. Among these, platelet-rich fibrin is distinguished by allowing it to be made an autogenous membrane. This membrane supports exposure to the oral cavity without contamination and can stimulate the healing of soft and bony tissue, acting as a physical barrier. Its use as a growth factor and protective barrier of the alveolar bone graft in patients with cleft lip and palate is a promising tool for obtaining better results.
International Journal of Growth Factors and Stem Cells in Dentistry, 2018
Reconstruction of the alveolar ridge in patients with cleft lip and palate can be a challenging p... more Reconstruction of the alveolar ridge in patients with cleft lip and palate can be a challenging procedure. This stage of the treatment allows stabilization of the dental arch, adequate dental eruption, and orthodontic movement in the area of the cleft. Hence, it should be performed before the eruption of the permanent canine. Failure mainly occurs by dehiscence, exposure, and contamination of the bone graft. Adequate dissection, the definition of anatomical planes, and precise suture are paramount for a good result. However, this is often not enough. Sometimes, there is an anatomical limitation to make a suitable soft-tissue scaffold to be filled with bone graft. The lack of a hermetic closure of the anatomical planes can lead to contamination of the graft or even prevent its accomplishment in the same surgical time. Growth factors have been widely used in dentistry, with striking results in bone and tissue regeneration. Among these, platelet-rich fibrin is distinguished by allowing...
Presented here is our experience with a new approach to abdominoplasty using a limited incision w... more Presented here is our experience with a new approach to abdominoplasty using a limited incision with liposuction. The indications and advantages of the proposed technique are discussed. The procedure was performed in 20 consecutive cases. The benefits of the procedure are the resultant natural contour of the abdominal wall and umbilicus, the maintenance of the mons pubis at its original site, and, most importantly, a limited scar.
Polyurethane breast implants were first introduced by Ashley (Plast Reconstr Surg 45:421-424, 197... more Polyurethane breast implants were first introduced by Ashley (Plast Reconstr Surg 45:421-424, 1970), with the intention of trying to reduce the high incidence of capsular contracture associated with smooth shelled, high gel bleed, silicone breast implants. The sterilization of the polyurethane foam in the early days was questionable. More recently, ethylene oxide (ETO)-sterilized polyurethane has been used in the manufacturing process and this has been shown to reduce the incidence of biofilm. The improved method of attachment of polyurethane onto the underlying high cohesive gel, barrier shell layered, silicone breast implants also encourages bio-integration. Polyurethane covered, cohesive gel, silicone implants have also been shown to reduce the incidence of other problems commonly associated with smooth or textured silicone implants, especially with reference to displacement, capsular contracture, seroma, reoperation, biofilm and implant rupture. Since the introduction of the conical polyurethane implant (Silimed, Brazil) into the United Kingdom in 2009 (Eurosurgical, UK), we have had the opportunity to review histology taken from the capsules of polyurethane implants in three women ranging from a few months to over 3 years after implantation. All implants had been inserted into virgin subfascial, extra-pectoral planes. The results add to the important previously described histological findings of Bassetto et al. (Aesthet Plast Surg 34:481-485, 2010). Five distinct layers are identified and reasons for the development of each layer are discussed. Breast capsule around polyurethane implants, in situ for fifteen and 20 years, has recently been obtained and analysed in Brazil, and the histology has been incorporated into this study. After 20 years, the polyurethane is almost undetectable and capsular contracture may appear. These findings contribute to our understanding of polyurethane implant safety, and give reasoning for a significant reduction in clinical capsular contracture rate, up to 10 years after implantation, compared to contemporary silicone implants. A more permanent matrix equivalent to polyurethane may be the solution for reducing long-term capsular contracture. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Papers by Henrique Cintra