Person:
Ortega Aranegui, Ricardo

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First Name
Ricardo
Last Name
Ortega Aranegui
URI
https://hdl.handle.net/20.500.14352/79872
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Odontología
Department
Especialidades Clínicas Odontológicas
Area
Estomatología
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2017 - 20182
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Author: Ortega Aranegui, Ricardo × Subject: 616.314-089.843 ×

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Now showing 1 - 2 of 2
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    In vitro comparison of primary stability of two implant designs in D3 bone
    (Med Oral Patol Oral Cir Bucal, 2017) González Serrano, José; Ortega Aranegui, Ricardo; López-Quiles Martínez, Juan
    Background: Primary stability (PS) is a key factor for implant survival rate and depends on implant design or bone quality. The aim of this study was to compare different thread designs implants, evaluating PS with periotest values (PV) and implant stability quotient (ISQ) values through resonance frequency analysis (RFA). Material and methods: A total of 60 implants (Radhex®, Inmet-Garnick S.A., Guadalajara, Spain) were placed in freshly bovine ribs in vitro. Two designs were used: 30 tapered body with single thread design (PHI) and 30 tapered body with double thread design implants (PHIA). Both designs were 4mm wide and 12mm long. Implants were placed according to manufacturer's guidelines. Osstell™ and Periotest® devices were used to evaluate PS by a blinded independent observer. Computed tomographies (CTs) of the ribs were made (BrightSpeed Series CT systems, GE Healthcare, Milwaukee, WI, USA) and bone quality surrounding each implant was evaluated in Hounsfield Units (HU) using Ez3D Plus software (Vatech Co., Korea). Bone quality was classified according to Misch and Kircos in D1, D2, D3 or D4. Results: All implants were mechanically stable. Only implants placed in D3 bone (350-850 HU) were selected for the study: 28 PHI and 26 PHIA. The one way ANOVA showed significant difference (p < 0.005) among two implants designs in ISQ values (61,55 ± 6,67 in PHI and 68,94 ± 5,82 in PHIA). No significant difference (p = 0,171) was shown in PV between two designs (-4,47 ± 1,39 in PHI and -4,77 ± 0,87 in PHIA). Conclusions: Higher PS was found using Osstell™ device in implants with double thread design (PHIA) in comparison to implants with single thread design (PHI) in D3 bone.
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    Maxillary sinus balloon lifting and deferred implantation of 50 osseointegrated implants: a prospective, observational, non-controlled study
    (International Journal of Oral and Maxillofacial Surgery, 2018) López-Quiles Martínez, Juan; Melero-Alarcón, C.; Cano-Durán JA; Sánchez-Martínez-Sauceda EI; Ortega Aranegui, Ricardo
    The aim of this study was to assess the effectiveness of minimally invasive antral membrane balloon elevation (MIAMBE). Twenty-seven patients with severe resorption of the posterior maxilla were treated by balloon catheter-assisted sinus lift procedure with deferred implant placement. Panoramic radiographs and computed tomography scans were obtained prior to surgery and at 6 months after surgery, before implantation. Data collected following surgery included inflammation, pain, bleeding, infection, and haematoma. Pain and inflammation were recorded using a six-point verbal rating scale (VRS). The patients were followed up for an average of 15 months. The initial sinus floor height was measured for each planned implant and compared with the height at 6 months post-surgery. The average bone height gain was 8.10 ± 3.45 mm (range 0.5–13.95 mm). Inflammation on the VRS ranged from 0 to 3 (mean 0.97 ± 0.85), while pain ranged from 0 to 4 (mean 0.87 ± 1.19). There was a perforation of the Schneiderian membrane smaller than 2 mm in one case. In another case, the balloon lift procedure had to be aborted and changed to the conventional Tatum technique due to breakage of the balloon inside the sinus. The results of this study show the balloon sinus lift technique to be an easy procedure to perform, with apparently low rates of inflammation and pain, and to provide sufficient quantity and quality of bone for the placement of osseointegrated implants.