



@book {2491,
	title = {Mineralised membranes for bone regeneration},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Mesquita, P.; Inst. de Engenharia Biom{\'e}dica, R. do Campo Alegre 823, 4150-180 Porto, PortugalReferences: Baron, M., Haas, R., D{\"o}rtbudak, O., Watzek, G., Experimentally induced peri-implantitis: A review (2000) Int J Oral Maxillofac Implants, 15, pp. 533-544;Hammerle, C.H., Jung, R.E., Feloutzis, A., A systematic review of the survival of implants in bone sites augmented with barrier membranes (guided bone regeneration) in partially edentulous patients (2002) J Clin. Periodontol., 29 (SUPPL. 3), pp. 226-231; 
Brunel, G., Brocard, D., Duffort, J.F., Jacquet, E., Justumus, P., Simonet, T., Benque, E., Bioabsorbable materials for guided bone regeneration prior to implant placement and 7-year followup: Report of 14 cases (2001) J Periodontol., 72 (2), pp. 257-264; 
Karapati, S., Hugson, A., Kugelberg, C.F., Healing following GTR treatment of bone defects distal to mandibular 2 nd molars after removal of impacted 3 rd molars (2000) J. Clin. Periodontol., 27, pp. 325-332; 
Sim{\~o}es, R., Fonseca, L., Vasconcelos, M., Afonso, A., Cavalheiro, J., Modified exoskeleton of shrimp for guided bone regeneration (2002) 17 th ESB, , Barcelona, Spain, September
},
	month = {2004///},
	pages = {1091 - 1094},
	address = {Porto},
	abstract = {Guided bone regeneration can be achieved using filling biomaterials and protective membranes. The aim of this work is to study a new membrane prepared from shrimp shells, without modification of the natural concave shape. The "in vitro" bioactivity was evaluated using a simulated body fluid prepared with substitution of calcium by strontium (SBR-Sr). The bioactivity behaviour was increased using a surface treatment with sodium silicate. The "in vitro" and "in vivo" tests allow to conclude that these membranes are bioactive and can induce bone growth on their surfaces.},
	keywords = {Biological membranes, biomaterial, Biomaterials, Bone, Bone Regeneration, Calcium, Ceramic materials, Deproteinization, Membrane, Mineralised membranes, Natural material, Optical microscopy, Shear strength, Sodium compounds, Strontium, Substitution reactions},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0348145956\&partnerID=40\&md5=51d6fa431f03c745e2def45321a0dfa0},
	author = {Mesquita, P. and Branco, R. and Afonso, A. and Vasconcelos, M. and Cavalheiro, J.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@book {2496,
	title = {Study of a Silicate Cement for Dental Applications},
	series = {Key Engineering MaterialsKey Eng Mat},
	volume = {254-256},
	year = {2004},
	note = {Conference code: 62053Cited By (since 1996): 1Export Date: 21 November 2012Source: ScopusCODEN: KEMAELanguage of Original Document: EnglishCorrespondence Address: Pereira, S.; Fac. de Medicina Dent{\'a}ria, Universidade do Porto, R. Dr. Manuel Pereira da Silva, 4200-393 Porto, PortugalReferences: Craig, R.G., Rovers, J.M., (2002) Restorative Dental Materials. 9th Ed., pp. 593-627. , St Louis: Mosby;Gladwin, M., Bagby, M., (2000) Clinical Aspects of Dental Materials. First Edition, pp. 81-92. , Philadelphia: Lippincott Williams \& Wilkins; 
Leinfelder, K.F., Changing Restorative Traditions: The Use of Bases and Liners (1994) JADA, 125, pp. 65-67; 
Macchi, R.L., (2000) Mat. Dentales. 3 a Ed., pp. 129-135. , Buenos Aires: Edit. M{\'e}dica P.americana S.A; 
Wise, D.L., (1995) Encyclopedic Handbook of Biomaterials and Bioengineering, pp. 1398-1411. , New York: Marcel Dekver; 
Gordan, V.V., Mj{\"o}r, I.A., Hucke, R.D., Smith, G.E., Effect of Different Liner Treatments on Postoperative Sensivity of Amalgam Restorations (1999) Quintessence Int, 30, pp. 55-59; 
Me, M., Nakai, H., Effect of Immersion in Water on Linear Expansion and Strength of Three Base/Liner Materials (1995) Dent Mater, 14, pp. 70-77; 
Leevailoj, C., Cochran, M.A., Matis, B.A., Moore, B.K., Platt, J.A., Microleakage of Posterior Packable Resin Composites with and without Flowable Liners (2001) Oper Dent, 26, pp. 302-307; 
Weiner, R.S., Weiner, L.K., Kugel, G., Teaching the Use of Bases and Liners: A Survey of the North American Dental Schools (1996) JADA, 127, pp. 1640-1645; 
Pereira, S., Branco, R., Cavalheiro, J., Afonso, A., Vasconcelos, M., (2003) Sealing Ability of a New Dental Base Material, , Bioeng; 
(1991) Specification for Dental Water-based Cements, , ISO 9917 (F)
},
	month = {2004///},
	pages = {659 - 662},
	address = {Porto},
	abstract = {Dental cements have a wide field of applications in clinical practice. The use as a base material is a very important one in dentistry. The aim of this study is to assess some relevant properties of a silicate cement (SC) developed for dental applications, comparing it with two other cements already commercialised, a zinc phosphate cement De Trey Zinc Cement Improved{\textregistered} (DT) and ProRootMTA{\textregistered}(MTA). Their compressive strength, dimensional changes and weight variation in water after setting, according to ISO standards were compared. The mean compressive strength of DT, MTA and SC were, respectively, 134MPa, 31MPa and 46MPa. There were no statistically significant differences for the three tested cements at the various time intervals, in respect to their weight variation or dimensional changes. However, there was a little loss of weight for DT (0.15\%) and for MTA (3\%) and a gain of 3\% for the SC. Regarding the dimensional changes, all materials undergo little expansion, more significant in the MTA and in the SC samples of 2,07\% and 0,4\%, respectively. The new Silicate Cement, presented enough compressive strength, low weight variation, very small dimensional changes and good adaptation to the surface of dental cavity. For these reasons this new cement could be a valuable proposal as a base material for dental applications.},
	keywords = {Biocompatibility, Body fluids, Ceramic materials, ceramics, Compressive Strength, Dental cement, Dental cements, Dental prostheses, Dimensional stability, Precipitation (chemical), Scanning electron microscopy, Silicate cements, Silicates, Stainless steel, Weight variation},
	isbn = {10139826 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0346255102\&partnerID=40\&md5=b43c6052d3f4c9fcaff59b75a9cad543},
	author = {Pereira, S. and Cavalheiro, J. and Branco, R. and Afonso, A. and Vasconcelos, M.},
	editor = {Barbosa M.A. and Monteiro F.J. and Correia R. and Leon B.}
}
@article {2596,
	title = {Guided bone regeneration using osteopatite{\textregistered} granules and polytetrafluoroethylene membranes},
	journal = {Journal of Materials Science: Materials in MedicineJ. Mater. Sci. Mater. Med.},
	volume = {8},
	year = {1997},
	note = {Cited By (since 1996): 3Export Date: 21 November 2012Source: ScopusCODEN: JSMMEdoi: 10.1023/A:1018533217238Language of Original Document: EnglishCorrespondence Address: Vasconcelos, M.; Faculty of Dental Medicine, University of Porto, Rua Dr. Roberto Frias, 4200 Porto, PortugalTradenames: OsteopatiteReferences: Cavalheiro, J., Branco, R., Vasconcelos, M., (1991) Proceedings of the 4th International Conference on Bioceramics, p. 205. , edited by W. Bonfield, G. W. Hastings and K. E. Tanner, London, UK Butterworth-Heinemann, Oxford;Cavalheiro, J., Vasconcelos, M., Afonso, A., Peres, F., Branco, R., (1994) Stoma, 30, p. 15; 
Dahlin, C., Lekholm, U., Becker, W., Becker, B., Higuchi, K., Callens, A., Steenberghe, D., (1995) Int. J. Oral Maxillofac. Implants, 3, p. 312; 
Aughtun, M., Doz, P., Yildirim, M., Spiekermann, H., Biesterfeld, S., (1995) Int. J. Oral Maxillofac. Implants, 4, p. 421; 
Simion, M., Scarano, A., Gionso, L., Piattelli, A., (1995) Int. J. Oral Maxillofac. Implants, 3, p. 312; 
Afonso, A., Santos, J.D., Vasconcelos, M., Branco, R., Cavalheiro, J., (1996) J. Mater. Sci: Mater. Med., 7, p. 507; 
Jovanovic, S.A., Schenk, R.K., Orsini, M., Kenney, E.B., (1995) Int. J. Oral Maxillofac. Implants, 1, p. 27; 
Sander, L., Karring, T., (1995) J. Clin. Periodontol., 22, p. 295; 
Grevstad, H.J., Leknes, K.N., (1993) J. Clin. Periodontol., 20, p. 193; 
Piattelli, A., Scarano, A., Russo, P., Matarasso, S., (1996) Biomaterials, 17, p. 791
},
	month = {1997///},
	pages = {815 - 818},
	publisher = {Chapman \& Hall Ltd},
	abstract = {Granules of a modified hydroxyapatite, Osteopatite{\textregistered}, were implanted in the right posterior tibiae of adult rabbits. We studied the extent of bone regeneration in bone holes. In the right tibiae, that were filled with granules of this biomaterial covered with a polytetrafluoroethylene (PTFE) membrane using, as a control, uncovered granules. In the left tibia, an empty hole was covered with PTFE membrane and a second hole was left empty to be used as a control. A histomorphometric study was carried out using light microscopy, four and eight weeks after the surgery. The covered granules presented a higher percentage of bone contact than the uncovered ones, and it was also possible to observe a better bone tissue organization, mainly produced by the immobilization action of the PTFE membrane. Empty bone defects covered with PTFE membranes, two months after implantation, presented large areas of Haversian bone and direct bone contact to the PTFE membrane.Granules of a modified hydroxyapatite, Osteopatite, were implanted in the right posterior tibiae of adult rabbits. We studied the extent of bone regeneration in bone holes. In the right tibiae, that were filled with granules of this biomaterial covered with a polytetrafluoroethylene (PTFE) membrane using, as a control, uncovered granules. In the left tibia, an empty hole was covered with PTFE membrane and a second hole was left empty to be used as a control. A histomorphometric study was carried out using light microscopy, four and eight weeks after the surgery. The covered granules presented a higher percentage of bone contact than the uncovered ones, and it was also possible to observe a better bone tissue organization, mainly produced by the immobilization action of the PTFE membrane. Empty bone defects covered with PTFE membranes, two months after implantation, presented large areas of Haversian bone and direct bone contact to the PTFE membrane.
},
	keywords = {animal experiment, Animalia, biomaterial, Bone, bone defect, Bone Regeneration, conference paper, controlled study, haversian canal, hydroxyapatite, Implants (surgical), microscopy, nonhuman, Optical microscopy, Oryctolagus cuniculus, Phosphate minerals, politef, Polymeric membranes, Polytetrafluoroethylenes, priority journal, rabbit, tibia},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0031438784\&partnerID=40\&md5=a60e39e457f8acd1d4a8b3586a52acf1},
	author = {Vasconcelos, M. and Afonso, A. and Branco, R. and Cavalheiro, J.}
}
@article {2627,
	title = {Granules of osteoapatite and glass-reinforced hydroxyapatite implanted in rabbit tibiae},
	journal = {Journal of Materials Science: Materials in MedicineJ. MATER. SCI. MATER. MED.},
	volume = {7},
	year = {1996},
	note = {Cited By (since 1996): 16Export Date: 21 November 2012Source: ScopusCODEN: JSMMELanguage of Original Document: EnglishCorrespondence Address: Afonso, A.; Faculty of Dental Medicine, University of Porto, Rua Dr Roberto Frias, 4200 Porto, PortugalChemicals/CAS: calcium phosphate, 10103-46-5, 13767-12-9, 14358-97-5, 7758-87-4; hydroxyapatite, 1306-06-5, 51198-94-8; magnesium, 7439-95-4; potassium, 7440-09-7; sodium, 7440-23-5References: Ravaglioli, A., Krajewski, A., (1992) Bioceramics-materials, Properties and Applications, p. 100. , Chapman \& Hall, London;Cranin, A.N., Ronen, E., Puntoff, R.S.H., Tobim, G., Dibeling, J.B., (1988) J. Biomed. Mater. Res., 22, p. 1165; 
De Groot, K., Klein, C.P.A.T., (1990) "Handbook of Bioactive Ceramics", Vol. II-Calcium Phosphate and Hydroxylapatite Ceramics, 2, p. 3. , edited by T. Yamamuro CRC Press, Boston; 
Hollinger, J.O., Schmitz, J.P., Mizgala, J.W., Hassler, C., (1989) J. Biomed. Mater. Res., 23, p. 17; 
Cavalheiro, J., Branco, R., Vasconcelos, M., (1991) Proceedings of the 4th International Conference on Bioceramics, p. 205. , edited by W. Bonfield, G. W. Hastings and K. E. Tanner, London, UK Butterworth-Heinemann, Oxford; 
Santos, J.D., Reis, R.L., Knowles, J.C., Monteiro, F.J., Hastings, G.W., (1994) Biomaterials, 15, p. 5; 
Nery, E.B., Legeros, R.Z., Lynch, K.L., Kalbleisch, J., (1988) J. Dent. Res., 67, p. 178; 
Ellinger, R.F., Nery, E.B., Lynch, K.L., (1986) Int. J. Period. Restor. Dent., 3, p. 223; 
Legeros, R.Z., Daculsi, G., (1990) "Handbook of Bioactive Ceramics", Vol. II-Calcium Phosphate and Hydroxylapatite Ceramics, 2, p. 17. , edited by T. Yamamuro CRC Press, Boston
},
	month = {1996///},
	pages = {507 - 510},
	abstract = {Granules of a modified hydroxyapatite, glass-reinforced hydroxyapatite composite and commercial hydroxyapatite were implanted in rabbit tibiae. Histological studies were carried out after 1 and 2 months implantation periods using light and fluorescence microscopy. A much higher percentage of bone contact was developed for both the glass-reinforced hydroxyapatite composite and the modified hydroxyapatite when compared to commercial hydroxyapatite (89-91\% versus 66\%) after 2 months implantation. The mechanism of bone formation and growth around implants is discussed in terms of the influence of elements incorporated into these novel materials which are commonly found in bone tissues, such as Na, K and Mg, and the presence of a soluble β-tricalcium phosphate phase in the microstructure of the composite.},
	keywords = {animal experiment, animal tissue, article, Bone, Bone formation, bone growth, Calcium Compounds, calcium phosphate, Composite materials, Fiber reinforced materials, glass, Glass fibers, Glass reinforced hydroxyapatite, Granular materials, histology, hydroxyapatite, implant, Implants (surgical), Magnesium, Microstructure, Modified hydroxyapatite, nonhuman, Optical microscopy, ossification, Osteoapatite, Oxides, Phosphates, Physiological models, potassium, priority journal, rabbit, Rabbit tibiae, Sodium, tibia, X ray diffraction analysis},
	isbn = {09574530 (ISSN)},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0029666749\&partnerID=40\&md5=48a404008151489ff92ea9bc191cf374},
	author = {Afonso, A. and Santos, J.D. and Vasconcelos, M. and Branco, R. and Cavalheiro, J.}
}
@conference {2617,
	title = {Histological evaluation of two bioactive cements},
	booktitle = {Transactions of the Annual Meeting of the Society for Biomaterials in conjunction with the International Biomaterials SymposiumTrans Annu Meet Soc Biomater Int Biomater Symp},
	series = {Proceedings of the 1996 5th World Biomaterials Congress. Part 2 (of 2)},
	volume = {2},
	year = {1996},
	note = {Conference code: 45651Export Date: 21 November 2012Source: ScopusCODEN: TAMSELanguage of Original Document: EnglishCorrespondence Address: Vasconcelos, M.; INEB-Inst Eng. Biomedica, Porto, Portugal},
	month = {1996///},
	pages = {61},
	publisher = {Soc for Biomaterials},
	organization = {Soc for Biomaterials},
	address = {Toronto, Can},
	abstract = {Two bioactive bone cements were compared with poly(methylmethacrylate) (PMMA) cement. Cement A was prepared from precipitated hydroxyapatite and tricalcium phosphate, using an aqueous solution of Na                        2HPO
                        4. Cement B was prepared by crushing a bioactive glass composed of SiO
                        2, CaO, P
                        2O
                        5 and Na
                        2O. The powder was mixed with NH
                        4H
                        2PO
                        4/(NH
                        4)
                        2 PO
                        4 aqueous solution buffered at pH = 7.4. The bioactive cements exhibited different in vivo behaviors but both performed better than PMMA cement.
},
	keywords = {Bioactive bone cements, bone cement, glass, hydroxyapatite, Ion exchange, Lime, pH, Phosphate minerals, Polymethyl methacrylates, Silica, Sodium compounds, Solutions, Sorption, Tricalcium phosphate},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0030421685\&partnerID=40\&md5=14886fa9d05aee6f93ab00abbac772ad},
	author = {Vasconcelos, M. and Afonso, A. and Branco, R. and Planell, J. and Driessens, F. and Cavalheiro, J.},
	editor = {Anon}
}
