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See detailLocalized Piezoelectric Alveolar Decortication for Orthodontic Treatment in Adults: A Randomized Controlled Trial
CHARAVET, Carole ULg; LECLOUX, Geoffrey ULg; BRUWIER, Annick ULg et al

in Journal of Dental Research (2016)

AIMS : This randomized controlled trial aimed to evaluate the benefits and clinical outcomes of piezocision, which is a minimally invasive approach to corticotomy that is used in orthodontic treatments ... [more ▼]

AIMS : This randomized controlled trial aimed to evaluate the benefits and clinical outcomes of piezocision, which is a minimally invasive approach to corticotomy that is used in orthodontic treatments. MATERIALS AND METHODS : Twenty-four adult patients presenting with mild overcrowdings were randomly allocated to either a control group that was treated with conventional orthodontics or a test group that received piezo-assisted orthodontics. The piezocisions were performed 1 wk week after the placement of the orthodontic appliances. Neither grafting material nor sutures were used. All patients were followed every 2 wk, and archwires were changed only when they were no longer active. The periods required for the completion of the overall orthodontic treatments were calculated, and the periodontal parameters were evaluated at baseline and at the end of the orthodontic treatment. Patient-centered outcomes were assessed with a visual analog scale; analgesic use following the procedures was also recorded. RESULTS : The patient characteristics were similar between the 2 groups. The overall treatment time was significantly reduced by 43% in the piezocision group as compared with the control group. In both groups, periodontal parameters (i.e., recession depth, pocket depth, plaque index, and papilla bleeding index) remained unchanged between the baseline and treatment completion time points. No increase in root resorption was observed in either group. Scars were observed in 50% of the patients in the piezocision group. Analgesic consumption was similar following orthodontic appliance placement and piezocision surgery. Patient satisfaction was significantly better in the piezocision group than in the control group. CONCLUSION : In these conditions, the piezocision technique seemed to be effective in accelerating orthodontic tooth movement. No gingival recessions were observed. The risk of residual scars might limit the indications for piezocision in patients with a high smile line (ClinicalTrials.gov NCT02590835) [less ▲]

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See detailFrom Artisanal to CAD-CAM Blocks: State of the Art of Indirect Composites
MAINJOT, Amélie ULg; DUPONT, Nathalie ULg; OUDKERK, Julie ULg et al

in Journal of Dental Research (2016), 95(5), 487-495

Indirect composites have been undergoing an impressive evolution over the last few years. Specifically, recent developments in computer- aided design–computer-aided manufacturing (CAD-CAM) blocks have ... [more ▼]

Indirect composites have been undergoing an impressive evolution over the last few years. Specifically, recent developments in computer- aided design–computer-aided manufacturing (CAD-CAM) blocks have been associated with new polymerization modes, innovative microstructures, and different compositions. All these recent breakthroughs have introduced important gaps among the properties of the different materials. This critical state-of-the-art review analyzes the strengths and weaknesses of the different varieties of CAD- CAM composite materials, especially as compared with direct and artisanal indirect composites. Indeed, new polymerization modes used for CAD-CAM blocks—especially high temperature (HT) and, most of all, high temperature–high pressure (HT-HP)—are shown to significantly increase the degree of conversion in comparison with light-cured composites. Industrial processes also allow for the augmentation of the filler content and for the realization of more homogeneous structures with fewer flaws. In addition, due to their increased degree of conversion and their different monomer composition, some CAD-CAM blocks are more advantageous in terms of toxicity and monomer release. Finally, materials with a polymer-infiltrated ceramic network (PICN) microstructure exhibit higher flexural strength and a more favorable elasticity modulus than materials with a dispersed filler microstructure. Consequently, some high- performance composite CAD-CAM blocks—particularly experimental PICNs—can now rival glass-ceramics, such as lithium-disilicate glass-ceramics, for use as bonded partial restorations and crowns on natural teeth and implants. Being able to be manufactured in very low thicknesses, they offer the possibility of developing innovative minimally invasive treatment strategies, such as “no prep” treatment of worn dentition. Current issues are related to the study of bonding and wear properties of the different varieties of CAD-CAM composites. There is also a crucial need to conduct clinical studies. Last, manufacturers should provide more complete information regarding their product polymerization process, microstructure, and composition, which significantly influence CAD-CAM material properties. [less ▲]

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See detailNumerical simulation of bone regeneration in a bone chamber.
Geris, Liesbet ULg; Vandamme, K.; Naert, I. et al

in Journal of Dental Research (2009), 88(2), 158-63

While mathematical models are able to capture essential aspects of biological processes like fracture healing and distraction osteogenesis, their predictive capacity in peri-implant osteogenesis remains ... [more ▼]

While mathematical models are able to capture essential aspects of biological processes like fracture healing and distraction osteogenesis, their predictive capacity in peri-implant osteogenesis remains uninvestigated. We tested the hypothesis that a mechano-regulatory model has the potential to predict bone regeneration around implants. In an in vivo bone chamber set-up allowing for controlled implant loading (up to 90 microm axial displacement), bone tissue formation was simulated and compared qualitatively and quantitatively with histology. Furthermore, the model was applied to simulate excessive loading conditions. Corresponding to literature data, implant displacement magnitudes larger than 90 microm predicted the formation of fibrous tissue encapsulation of the implant. In contradiction to findings in orthopedic implant osseointegration, implant displacement frequencies higher than 1 Hz did not favor the formation of peri-implant bone in the chamber. Additional bone chamber experiments are needed to test these numerical predictions. [less ▲]

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See detailSoft tissue attachment formation at titanium abutments in humans: a new model
Rompen, Eric ULg; Domken, Olivier ULg; Lamy, Marc ULg et al

in Journal of Dental Research (2003, December), 82(Sp. Iss. C), 510

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See detailPresence of alpha and beta estrogen receptors in human gingiva
Fraikin, N.; Munaut, Carine ULg; Lambert, Vincent ULg et al

in Journal of Dental Research (2002, December), 81(Sp. Iss. B), 239-239

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See detailSystemic release of endotoxins induced by gentle mastication: Association with periodontitis severity
Geerts, Sabine ULg; Nys, Monique ULg; De Mol, Patrick ULg et al

in Journal of Dental Research (2002, December), 81(Sp. Iss. B), 235-235

Detailed reference viewed: 28 (4 ULg)
See detailPeriodontal condition in Belgian patients with acute or chronic heart disease
Geerts, Sabine ULg; Charpentier, Joseph ULg; Albert, Adelin ULg et al

in Journal of Dental Research (2002, December), 81(Sp. Iss. B), 240-240

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See detailIn vitro modulation of human gingival keratinocyte migration by minocycline-HCl
Van Heusden, Alain ULg; Nusgens, Betty ULg; Lapière, Charles et al

in Journal of Dental Research (1998), 77

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See detailPeriodontitis as potential risk factor for coronary heart disease
Geerts, Sabine ULg; Legrand, Victor; Rompen, Eric ULg

in Journal of Dental Research (1998), 77

Detailed reference viewed: 8 (0 ULg)
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See detailIn vitro modulation of keratinocyte attachment to dentin by minocycline
Van Heusden, Alain ULg; Rompen, Eric ULg; Lapière, Charles

in Journal of Dental Research (1997), 76

Detailed reference viewed: 17 (3 ULg)
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See detailIn vitro modulation of keratinocyte attachment by minocycline H-Cl
Van Heusden, Alain ULg; Rompen, Eric ULg; Lebfevre, P. et al

in Journal of Dental Research (1995), 74

Detailed reference viewed: 18 (4 ULg)