Ivo De Souza Albuquerque - Profile on Academia.edu (original) (raw)
Papers by Ivo De Souza Albuquerque
Journal of Dentistry, 2020
To compare one-vs two-step impression procedures for the provision of conventional complete dentu... more To compare one-vs two-step impression procedures for the provision of conventional complete dentures (CCDs) for edentulous individuals with severe mandibular resorption, in terms of (1) masticatory performance and ability; (2) satisfaction with mandibular CCDs; and (3) post-delivery adjustments. Methods: Fifty-two patients requiring maxillary + mandibular CCDs were randomly divided into two parallel arms according to the impression method of the mandibular ridge: (SI) single impression with stock trays (irreversible hydrocolloid); (TI) two-step impression in custom trays, with border molding (impression compound) followed by the impression itself (polyether). Mastication performance was evaluated by a colorimetric test, whereas patients answered questions on masticatory ability and satisfaction with mandibular CCDs (100-mm visual analogue scale). The number of post-delivery sessions for adjustments were also quantified. Outcomes were assessed at 3 and 6 months after delivery. Results: The masticatory performance was similar for both groups, regardless of time (3 months, P = 0.62; 6 months, P = 0.61). No significant difference was found for patient-reported (P > 0.05), i.e. masticatory ability (general ease of chewing and quality of grinding food; ability to chew specific foods), general satisfaction with the mandibular CCD (general satisfaction, comfort, aesthetics, ability to speak and to perform correct cleaning, retention and stability). Both methods resulted in a similar number of post-delivery adjustment sessions [SI: 3.8 (1.7); TI: 3.2 (1.4); P = 0.09]. Conclusions: Compared to a traditional approach, CCDs obtained from a single impression achieve similar masticatory performance/ability and patient satisfaction, even in patients with severely reabsorbed mandibular ridge. Both methods demand the same amount of post-delivery adjustment. Clinical significance: A simplified impression technique which eliminates the secondary impression can provide CCDs of good clinical quality, which influences the OHRQoL, and satisfaction in the same extent they would by a two-step procedure, even for patients with severely reabsorbed mandibular ridges (ClinicalTrials.gov: NCT02339194).
Prótese total implanto suportada mandibular: relato de casos clínicos
Full dent. sci, 2011
RSBO
O bruxismo cêntrico é uma atividade parafuncional da musculatura da mastigação, caracterizado por... more O bruxismo cêntrico é uma atividade parafuncional da musculatura da mastigação, caracterizado por ranger e/ou apertamento dentário. Pode ser diurno ou noturno, com causas multifatoriais e sem tratamento específico. Essa estereotipia mandibular dificulta a reabilitação protética e requer experiência profissional. Objetivo: Verificar, na bibliografia da área, a efetividade dos diferentes tipos de próteses dentárias em pacientes bruxistas. Revisão de literatura: Trata-se de uma revisão de literatura integrativa realizada nas bases de dados PubMed, Web of Science, Scielo, Lilacs e Medline, nos idiomas inglês, português e espanhol, com publicações de novembro de 2009- 2019. Resultados: Dos 16 artigos encontrados, nove (56,25%) são relato de caso clínico, nove (56,25%) com bruxismo noturno, em quatro (25%) a overlay restabelecia a dimensão vertical de oclusão (DVO), em dez (62,5%) houve uso de placa miorrelaxante e cinco (31,25%) relataram próteses antigas com danos estruturais. Conclusão...
Combining different ceramic systems and periodontal microsurgery in maxillary esthetic areas: a case report
General dentistry, 2019
Oral rehabilitations in esthetic regions may be challenging when different prosthodontic modaliti... more Oral rehabilitations in esthetic regions may be challenging when different prosthodontic modalities must be combined with interventions on gingival tissues to create a harmonious smile for the patient. This case report describes the treatment of a 36-year-old man with an esthetically compromised maxillary anterior region by means of periodontal microsurgery, an implant-supported dental prosthesis, and tooth-supported crowns. Combined esthetic-functional planning based on clinical and radiographic examinations, photographs, and a diagnostic wax-up led to correction of the gingival contour and thickness by means of periodontal microsurgery; customization of an implant-supported zirconia abutment with the application of feldspathic porcelain; fabrication of a lithium disilicate ceramic infrastructure to mask darkened substrate; and fabrication of lithium disilicate ceramic definitive restorations. Five years after cementation of the restorations, the results remained stable. Careful tr...
Is a two-step impression mandatory for complete denture fabrication on the severely resorbed mandible? A randomized trial on patient perception and denture quality
Journal of Dentistry, 2020
OBJECTIVES To compare one- vs two-step impression procedures for the provision of conventional co... more OBJECTIVES To compare one- vs two-step impression procedures for the provision of conventional complete dentures (CCDs) for edentulous individuals with severe mandibular resorption, in terms of (1) masticatory performance and ability; (2) satisfaction with mandibular CCDs; and (3) post-delivery adjustments. METHODS Fifty-two patients requiring maxillary + mandibular CCDs were randomly divided into two parallel arms according to the impression method of the mandibular ridge: (SI) single impression with stock trays (irreversible hydrocolloid); (TI) two-step impression in custom trays, with border molding (impression compound) followed by the impression itself (polyether). Mastication performance was evaluated by a colorimetric test, whereas patients answered questions on masticatory ability and satisfaction with mandibular CCDs (100-mm visual analogue scale). The number of post-delivery sessions for adjustments were also quantified. Outcomes were assessed at 3 and 6 months after delivery. RESULTS The masticatory performance was similar for both groups, regardless of time (3 months, P = 0.62; 6 months, P = 0.61). No significant difference was found for patient-reported (P > 0.05), i.e. masticatory ability (general ease of chewing and quality of grinding food; ability to chew specific foods), general satisfaction with the mandibular CCD (general satisfaction, comfort, aesthetics, ability to speak and to perform correct cleaning, retention and stability). Both methods resulted in a similar number of post-delivery adjustment sessions [SI: 3.8 (1.7); TI: 3.2 (1.4); P = 0.09]. CONCLUSIONS Compared to a traditional approach, CCDs obtained from a single impression achieve similar masticatory performance/ability and patient satisfaction, even in patients with severely reabsorbed mandibular ridge. Both methods demand the same amount of post-delivery adjustment. CLINICAL SIGNIFICANCE A simplified impression technique which eliminates the secondary impression can provide CCDs of good clinical quality, which influences the OHRQoL, and satisfaction in the same extent they would by a two-step procedure, even for patients with severely reabsorbed mandibular ridges (ClinicalTrials.gov: NCT02339194).
A ausencia congenita dos incisivos laterais superiores acomete aproximadamente 2% dos individuos ... more A ausencia congenita dos incisivos laterais superiores acomete aproximadamente 2% dos individuos e pode causar problemas esteticos caso nao seja tratada de maneira adequada. O tratamento da ausencia de um ou mais dentes na regiao maxilar anterior e um grande desafio da Implantodontia atual. Uma alternativa e a utilizacao do pilar protetico de zirconia que, juntamente com uma coroa tambem livre de metal, possibilita a combinacao de fatores como resistencia, estetica e satisfacao do paciente. O presente artigo relata um caso clinico envolvendo a agenesia do dente 22 em uma paciente de 35 anos onde o seu respectivo deciduo encontrava-se ainda em funcao, porem com um grau elevado de reabsorcao radicular, inviabilizando assim, sua permanencia na arcada dentaria. O tratamento reabilitador consistiu na exodontia da unidade 62, colocacao do implante e instalacao da coroa provisoria imediata. Apos o periodo de 4 meses, o tratamento protetico definitivo foi realizado com a instalacao do abutm...
Comparação de duas técnicas de moldagem para confecção de prótese total em pacientes com rebordo mandibular severamente reabsorvido : estudo clínico cego randomizado controlado
Diante do atual empenho dos pesquisadores na construcao de evidencia cientifica de qualidade sobr... more Diante do atual empenho dos pesquisadores na construcao de evidencia cientifica de qualidade sobre a simplificacao da tecnica de obtencao de proteses totais convencionais (PTCs), o entendimento mais profundo de aspectos como a eliminacao da etapa de moldagem secundaria sobre o sucesso do tratamento, bem como se sua aplicacao e possivel em pacientes portadores de rebordos extremamente reabsorvidos, e de grande interesse clinico. Assim, o objetivo deste estudo foi avaliar, por meio de um ensaio clinico cego controlado randomizado, a influencia do procedimento de moldagem secundaria na reabilitacao de individuos desdentados totais portadores de mandibulas atroficas na qualidade de vida associada a saude bucal (QVSB), satisfacao com suas proteses em uso, qualidade clinica dos aparelhos proteticos, performance e habilidade mastigatorias, e necessidade de ajustes pos-instalacao. A amostra foi formada por pacientes desdentados totais com mandibula atrofica necessitando de tratamento com pr...
Reabilitação estética com abutment e coroa de zircônia da agenesia do incisivo lateral superior: relato de caso
Full Dent Sci, Sep 1, 2012
Planejamento, execução clínica e manutenção deprotocolo all-on-four bimaxilar – relato de caso clínico
Full Dent Sci, Dec 1, 2011
Brazilian Dental Journal, 2015
The aim of this study was to evaluate the efficacy of different surface conditioning methods on t... more The aim of this study was to evaluate the efficacy of different surface conditioning methods on the microtensile bond strength of a restorative composite repair in three types of dental ceramics: lithium disilicate-reinforced, leucite-reinforced and feldspathic. Twelve blocks were sintered for each type of ceramic (n=3) and stored for 3 months in distilled water at 37 °C. The bonding surface of ceramics was abraded with 600-grit SiC paper. Surface treatments for each ceramic were: GC (control) -none; GDB -diamond bur #30 µm; GHF -hydrofluoric acid (10%); GT-tribochemical silica coating (45-μm size particles). Treatments were followed by cleaning with phosphoric acid 37% for 20 s + silane + adhesive. The composite resin was used as restorative material. After repair, samples were subjected to thermocycled ageing (10,000 cycles between 5 °C and 55 °C for 30 s). Thereafter, the samples were sectioned into 1.0 mm 2 sticks and tested for microtensile bond strength with 0.5 mm/min crosshead speed. Data were compared by two-way ANOVA and Tukey's test (α=0.05). The superficial wear with diamond bur proved to be suitable for feldspathic porcelain and for leucite-reinforced glass ceramic while hydrofluoric acid-etching is indicated for repairs in lithium disilicate-reinforced ceramic; tribochemical silica coating is applicable to leucite-reinforced ceramic. Predominance of adhesive failures was observed (>85% in all groups). In conclusion, the success of surface treatments depends on the type of ceramic to be repaired.
Journal of Dentistry, 2020
To compare one-vs two-step impression procedures for the provision of conventional complete dentu... more To compare one-vs two-step impression procedures for the provision of conventional complete dentures (CCDs) for edentulous individuals with severe mandibular resorption, in terms of (1) masticatory performance and ability; (2) satisfaction with mandibular CCDs; and (3) post-delivery adjustments. Methods: Fifty-two patients requiring maxillary + mandibular CCDs were randomly divided into two parallel arms according to the impression method of the mandibular ridge: (SI) single impression with stock trays (irreversible hydrocolloid); (TI) two-step impression in custom trays, with border molding (impression compound) followed by the impression itself (polyether). Mastication performance was evaluated by a colorimetric test, whereas patients answered questions on masticatory ability and satisfaction with mandibular CCDs (100-mm visual analogue scale). The number of post-delivery sessions for adjustments were also quantified. Outcomes were assessed at 3 and 6 months after delivery. Results: The masticatory performance was similar for both groups, regardless of time (3 months, P = 0.62; 6 months, P = 0.61). No significant difference was found for patient-reported (P > 0.05), i.e. masticatory ability (general ease of chewing and quality of grinding food; ability to chew specific foods), general satisfaction with the mandibular CCD (general satisfaction, comfort, aesthetics, ability to speak and to perform correct cleaning, retention and stability). Both methods resulted in a similar number of post-delivery adjustment sessions [SI: 3.8 (1.7); TI: 3.2 (1.4); P = 0.09]. Conclusions: Compared to a traditional approach, CCDs obtained from a single impression achieve similar masticatory performance/ability and patient satisfaction, even in patients with severely reabsorbed mandibular ridge. Both methods demand the same amount of post-delivery adjustment. Clinical significance: A simplified impression technique which eliminates the secondary impression can provide CCDs of good clinical quality, which influences the OHRQoL, and satisfaction in the same extent they would by a two-step procedure, even for patients with severely reabsorbed mandibular ridges (ClinicalTrials.gov: NCT02339194).
Prótese total implanto suportada mandibular: relato de casos clínicos
Full dent. sci, 2011
RSBO
O bruxismo cêntrico é uma atividade parafuncional da musculatura da mastigação, caracterizado por... more O bruxismo cêntrico é uma atividade parafuncional da musculatura da mastigação, caracterizado por ranger e/ou apertamento dentário. Pode ser diurno ou noturno, com causas multifatoriais e sem tratamento específico. Essa estereotipia mandibular dificulta a reabilitação protética e requer experiência profissional. Objetivo: Verificar, na bibliografia da área, a efetividade dos diferentes tipos de próteses dentárias em pacientes bruxistas. Revisão de literatura: Trata-se de uma revisão de literatura integrativa realizada nas bases de dados PubMed, Web of Science, Scielo, Lilacs e Medline, nos idiomas inglês, português e espanhol, com publicações de novembro de 2009- 2019. Resultados: Dos 16 artigos encontrados, nove (56,25%) são relato de caso clínico, nove (56,25%) com bruxismo noturno, em quatro (25%) a overlay restabelecia a dimensão vertical de oclusão (DVO), em dez (62,5%) houve uso de placa miorrelaxante e cinco (31,25%) relataram próteses antigas com danos estruturais. Conclusão...
Combining different ceramic systems and periodontal microsurgery in maxillary esthetic areas: a case report
General dentistry, 2019
Oral rehabilitations in esthetic regions may be challenging when different prosthodontic modaliti... more Oral rehabilitations in esthetic regions may be challenging when different prosthodontic modalities must be combined with interventions on gingival tissues to create a harmonious smile for the patient. This case report describes the treatment of a 36-year-old man with an esthetically compromised maxillary anterior region by means of periodontal microsurgery, an implant-supported dental prosthesis, and tooth-supported crowns. Combined esthetic-functional planning based on clinical and radiographic examinations, photographs, and a diagnostic wax-up led to correction of the gingival contour and thickness by means of periodontal microsurgery; customization of an implant-supported zirconia abutment with the application of feldspathic porcelain; fabrication of a lithium disilicate ceramic infrastructure to mask darkened substrate; and fabrication of lithium disilicate ceramic definitive restorations. Five years after cementation of the restorations, the results remained stable. Careful tr...
Is a two-step impression mandatory for complete denture fabrication on the severely resorbed mandible? A randomized trial on patient perception and denture quality
Journal of Dentistry, 2020
OBJECTIVES To compare one- vs two-step impression procedures for the provision of conventional co... more OBJECTIVES To compare one- vs two-step impression procedures for the provision of conventional complete dentures (CCDs) for edentulous individuals with severe mandibular resorption, in terms of (1) masticatory performance and ability; (2) satisfaction with mandibular CCDs; and (3) post-delivery adjustments. METHODS Fifty-two patients requiring maxillary + mandibular CCDs were randomly divided into two parallel arms according to the impression method of the mandibular ridge: (SI) single impression with stock trays (irreversible hydrocolloid); (TI) two-step impression in custom trays, with border molding (impression compound) followed by the impression itself (polyether). Mastication performance was evaluated by a colorimetric test, whereas patients answered questions on masticatory ability and satisfaction with mandibular CCDs (100-mm visual analogue scale). The number of post-delivery sessions for adjustments were also quantified. Outcomes were assessed at 3 and 6 months after delivery. RESULTS The masticatory performance was similar for both groups, regardless of time (3 months, P = 0.62; 6 months, P = 0.61). No significant difference was found for patient-reported (P > 0.05), i.e. masticatory ability (general ease of chewing and quality of grinding food; ability to chew specific foods), general satisfaction with the mandibular CCD (general satisfaction, comfort, aesthetics, ability to speak and to perform correct cleaning, retention and stability). Both methods resulted in a similar number of post-delivery adjustment sessions [SI: 3.8 (1.7); TI: 3.2 (1.4); P = 0.09]. CONCLUSIONS Compared to a traditional approach, CCDs obtained from a single impression achieve similar masticatory performance/ability and patient satisfaction, even in patients with severely reabsorbed mandibular ridge. Both methods demand the same amount of post-delivery adjustment. CLINICAL SIGNIFICANCE A simplified impression technique which eliminates the secondary impression can provide CCDs of good clinical quality, which influences the OHRQoL, and satisfaction in the same extent they would by a two-step procedure, even for patients with severely reabsorbed mandibular ridges (ClinicalTrials.gov: NCT02339194).
A ausencia congenita dos incisivos laterais superiores acomete aproximadamente 2% dos individuos ... more A ausencia congenita dos incisivos laterais superiores acomete aproximadamente 2% dos individuos e pode causar problemas esteticos caso nao seja tratada de maneira adequada. O tratamento da ausencia de um ou mais dentes na regiao maxilar anterior e um grande desafio da Implantodontia atual. Uma alternativa e a utilizacao do pilar protetico de zirconia que, juntamente com uma coroa tambem livre de metal, possibilita a combinacao de fatores como resistencia, estetica e satisfacao do paciente. O presente artigo relata um caso clinico envolvendo a agenesia do dente 22 em uma paciente de 35 anos onde o seu respectivo deciduo encontrava-se ainda em funcao, porem com um grau elevado de reabsorcao radicular, inviabilizando assim, sua permanencia na arcada dentaria. O tratamento reabilitador consistiu na exodontia da unidade 62, colocacao do implante e instalacao da coroa provisoria imediata. Apos o periodo de 4 meses, o tratamento protetico definitivo foi realizado com a instalacao do abutm...
Comparação de duas técnicas de moldagem para confecção de prótese total em pacientes com rebordo mandibular severamente reabsorvido : estudo clínico cego randomizado controlado
Diante do atual empenho dos pesquisadores na construcao de evidencia cientifica de qualidade sobr... more Diante do atual empenho dos pesquisadores na construcao de evidencia cientifica de qualidade sobre a simplificacao da tecnica de obtencao de proteses totais convencionais (PTCs), o entendimento mais profundo de aspectos como a eliminacao da etapa de moldagem secundaria sobre o sucesso do tratamento, bem como se sua aplicacao e possivel em pacientes portadores de rebordos extremamente reabsorvidos, e de grande interesse clinico. Assim, o objetivo deste estudo foi avaliar, por meio de um ensaio clinico cego controlado randomizado, a influencia do procedimento de moldagem secundaria na reabilitacao de individuos desdentados totais portadores de mandibulas atroficas na qualidade de vida associada a saude bucal (QVSB), satisfacao com suas proteses em uso, qualidade clinica dos aparelhos proteticos, performance e habilidade mastigatorias, e necessidade de ajustes pos-instalacao. A amostra foi formada por pacientes desdentados totais com mandibula atrofica necessitando de tratamento com pr...
Reabilitação estética com abutment e coroa de zircônia da agenesia do incisivo lateral superior: relato de caso
Full Dent Sci, Sep 1, 2012
Planejamento, execução clínica e manutenção deprotocolo all-on-four bimaxilar – relato de caso clínico
Full Dent Sci, Dec 1, 2011
Brazilian Dental Journal, 2015
The aim of this study was to evaluate the efficacy of different surface conditioning methods on t... more The aim of this study was to evaluate the efficacy of different surface conditioning methods on the microtensile bond strength of a restorative composite repair in three types of dental ceramics: lithium disilicate-reinforced, leucite-reinforced and feldspathic. Twelve blocks were sintered for each type of ceramic (n=3) and stored for 3 months in distilled water at 37 °C. The bonding surface of ceramics was abraded with 600-grit SiC paper. Surface treatments for each ceramic were: GC (control) -none; GDB -diamond bur #30 µm; GHF -hydrofluoric acid (10%); GT-tribochemical silica coating (45-μm size particles). Treatments were followed by cleaning with phosphoric acid 37% for 20 s + silane + adhesive. The composite resin was used as restorative material. After repair, samples were subjected to thermocycled ageing (10,000 cycles between 5 °C and 55 °C for 30 s). Thereafter, the samples were sectioned into 1.0 mm 2 sticks and tested for microtensile bond strength with 0.5 mm/min crosshead speed. Data were compared by two-way ANOVA and Tukey's test (α=0.05). The superficial wear with diamond bur proved to be suitable for feldspathic porcelain and for leucite-reinforced glass ceramic while hydrofluoric acid-etching is indicated for repairs in lithium disilicate-reinforced ceramic; tribochemical silica coating is applicable to leucite-reinforced ceramic. Predominance of adhesive failures was observed (>85% in all groups). In conclusion, the success of surface treatments depends on the type of ceramic to be repaired.