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CaP Coating and Low-Level Laser Therapy to Stimulate Early Bone Formation and Improve Fixation of Rough Threaded Implants

Prado, Renata Falchete do, PhD*; Ankha, Milagros del Valle El Abras, Msc; Bueno, Daiane Acácia Griti, DDS*,‡; Santos, Evelyn Luzia de Souza, Msc§; Tini, Ítalo Rigotti Pereira, Msc; Ramos, Carolina Judica, PhD; Spalding, Marianne, PhD#; Vasconcellos, Luis Gustavo Oliveira de, PhD**; Vasconcellos, Luana Marotta Reis de, PhD††

doi: 10.1097/ID.0000000000000824
Basic and Clinical Research
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Purpose: This study aimed to compare in vivo osteogenesis on rough threaded dental implants with and without calcium phosphate (CaP) coating deposition, alone or in association with low-level laser therapy (LLLT) by gallium aluminum arsenide.

Material and Methods: Four groups were studied: G1: implant; G2: implant + CaP coating; G3: implant + LLLT; and G4: implant + CaP coating + LLLT. LLLT was applied for 7 days at the surgical site before and after placing the implant. Topographic characterization was performed before surgery using scanning electron microscopy and energy dispersion spectrophotometry. Bone-implant contact (BIC) was measured after 1, 2, and 6 weeks and reverse torque after 6 weeks. In short periods, G2, G3, and G4 showed significantly greater BIC than G1 (P < 0.05), but no difference in BIC was observed at 6 weeks. However, the values for the removal torque test at 6 weeks were higher in G2 and G4 (P < 0.05).

Conclusion: Both CaP coating alone and using LLLT induce cellular stimulation and improve BIC in short-term healing, resulting in higher implant fixation, and should be considered in clinical practice due to their low cost and high effectiveness.

*Professor, Department of Bioscience and Oral Diagnosis, Universidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campos, Brazil.

PhD Student in Oral Biopathology Department of Bioscience and Oral Diagnosis, Universidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campos, Brazil.

Dental Surgery, Dental practitioner, Av. Alfredo Ignácio N Penido, São José dos Campos - SP, Brazil.

§PhD Student in Oral Biopathology, Altos do Esplanada, São José dos Campos - SP, Brazil.

PhD Student in Oral Biopathology, Department of Bioscience and Oral Diagnosis, Universidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campos, Brazil.

Professor, Department of Social Dentistry and Children's Clinic, Universidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campos, Brazil.

#Assistant Professor, Department of Bioscience and Oral Diagnosis, Universidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campos, Brazil.

**Professor, Department of Prosthodontics and Dental Materials, Universidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campos, Brazil.

††Assistant Professor, Department of Bioscience and Oral Diagnosis, Universidade Estadual Paulista (Unesp), Instituto de Ciência e Tecnologia, São José dos Campos, Brazil.

Reprint requests and correspondence to: Luana Marotta Reis de Vasconcellos, PhD, Departamento de Biociências e Diagnóstico Bucal, Av. Engenheiro Francisco José Longo, 777, Jardim São Dimas, São José dos Campos, São Paulo, CEP 12245000, Brazil, Phone: +55(12)39479340, Fax: +55(12)39479010, E-mail: luanamrv@gmail.com

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