TY  - JOUR
AU  - Calvo Guirado, Jose Luis
AU  - Ruiz, Rafael Arcesio Delgado
AU  - Piedad Ramirez-Fernandez, Maria
AU  - Abboud, Marcus
AU  - Janjić, Bojan
AU  - Sanchez de Val, Jose Eduardo Mate
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2143
AB  - BackgroundNarrow-diameter implants provide an alternative to the horizontal augmentation techniques situations severe bone atrophy. Lack of bone width and interdental space has been regarded as an encumbrance in the case selection for prosthetic rehabilitation using dental implants. ObjectiveThe aim of the study was to evaluate bone-to-implant contact and marginal bone loss of two different narrow implants in resorbed ridges at different crestal positions. Material and methods48 Bredent Narrow((R)) implants (24 MiniSky((R)) and NarowSky((R))) were placed at crestal and subcrestal levels in healing bone of atrophic alveolar ridge of 6 American foxhounds. Histological and histomorphometric analyses of osseointegration were carried out at 4 and 8weeks. ResultsModeling in the marginal defect region was accompanied by marked decreases in the dimensions of both the buccal and the more lingual bone walls. Relative to BIC, significant differences were found in favor of subcrestal group, for both Narrow Sky and MiniSky. Linear measurements showed to be slightly high in the crestal group. With significant differences for PM-IS (peri-implant mucosa to implant shoulder) and IS-BC (implant shoulder to buccal bone crest). ConclusionsWithin the limitations of animal study, it can be stated that the NarrowSky(test group) crestal and subcrestal implants showed less crestal bone resorption, higher ISQ values and most BIC at 4 and 8weeks of evaluation compared with MiniSky implants (control group). The design of the implants plays an important role in peri-implant mucosa and crestal bone maintenance at 8-week follow-up period.
PB  - Wiley, Hoboken
T2  - Clinical Oral Implants Research
T1  - RETRACTED: Histological and histomorphometric analyses of narrow implants, crestal and subcrestally placed in severe alveolar atrophy: a study in foxhound dogs (Retracted article. See vol. 29, pg. 819, 2018)
VL  - 27
IS  - 4
SP  - 497
EP  - 504
DO  - 10.1111/clr.12569
ER  - 

@article{
author = "Calvo Guirado, Jose Luis and Ruiz, Rafael Arcesio Delgado and Piedad Ramirez-Fernandez, Maria and Abboud, Marcus and Janjić, Bojan and Sanchez de Val, Jose Eduardo Mate",
year = "2016",
abstract = "BackgroundNarrow-diameter implants provide an alternative to the horizontal augmentation techniques situations severe bone atrophy. Lack of bone width and interdental space has been regarded as an encumbrance in the case selection for prosthetic rehabilitation using dental implants. ObjectiveThe aim of the study was to evaluate bone-to-implant contact and marginal bone loss of two different narrow implants in resorbed ridges at different crestal positions. Material and methods48 Bredent Narrow((R)) implants (24 MiniSky((R)) and NarowSky((R))) were placed at crestal and subcrestal levels in healing bone of atrophic alveolar ridge of 6 American foxhounds. Histological and histomorphometric analyses of osseointegration were carried out at 4 and 8weeks. ResultsModeling in the marginal defect region was accompanied by marked decreases in the dimensions of both the buccal and the more lingual bone walls. Relative to BIC, significant differences were found in favor of subcrestal group, for both Narrow Sky and MiniSky. Linear measurements showed to be slightly high in the crestal group. With significant differences for PM-IS (peri-implant mucosa to implant shoulder) and IS-BC (implant shoulder to buccal bone crest). ConclusionsWithin the limitations of animal study, it can be stated that the NarrowSky(test group) crestal and subcrestal implants showed less crestal bone resorption, higher ISQ values and most BIC at 4 and 8weeks of evaluation compared with MiniSky implants (control group). The design of the implants plays an important role in peri-implant mucosa and crestal bone maintenance at 8-week follow-up period.",
publisher = "Wiley, Hoboken",
journal = "Clinical Oral Implants Research",
title = "RETRACTED: Histological and histomorphometric analyses of narrow implants, crestal and subcrestally placed in severe alveolar atrophy: a study in foxhound dogs (Retracted article. See vol. 29, pg. 819, 2018)",
volume = "27",
number = "4",
pages = "497-504",
doi = "10.1111/clr.12569"
}

Calvo Guirado, J. L., Ruiz, R. A. D., Piedad Ramirez-Fernandez, M., Abboud, M., Janjić, B.,& Sanchez de Val, J. E. M.. (2016). RETRACTED: Histological and histomorphometric analyses of narrow implants, crestal and subcrestally placed in severe alveolar atrophy: a study in foxhound dogs (Retracted article. See vol. 29, pg. 819, 2018). in Clinical Oral Implants Research
Wiley, Hoboken., 27(4), 497-504.
https://doi.org/10.1111/clr.12569

Calvo Guirado JL, Ruiz RAD, Piedad Ramirez-Fernandez M, Abboud M, Janjić B, Sanchez de Val JEM. RETRACTED: Histological and histomorphometric analyses of narrow implants, crestal and subcrestally placed in severe alveolar atrophy: a study in foxhound dogs (Retracted article. See vol. 29, pg. 819, 2018). in Clinical Oral Implants Research. 2016;27(4):497-504.
doi:10.1111/clr.12569 .

Calvo Guirado, Jose Luis, Ruiz, Rafael Arcesio Delgado, Piedad Ramirez-Fernandez, Maria, Abboud, Marcus, Janjić, Bojan, Sanchez de Val, Jose Eduardo Mate, "RETRACTED: Histological and histomorphometric analyses of narrow implants, crestal and subcrestally placed in severe alveolar atrophy: a study in foxhound dogs (Retracted article. See vol. 29, pg. 819, 2018)" in Clinical Oral Implants Research, 27, no. 4 (2016):497-504,
https://doi.org/10.1111/clr.12569 . .

TY  - JOUR
AU  - Marković, Aleksa
AU  - Mišić, Tijana
AU  - Calvo Guirado, Jose Luis
AU  - Delgado-Ruiz, Rafael
AU  - Janjić, Bojan
AU  - Abboud, Marcus
PY  - 2016
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/2126
AB  - Purpose: To evaluate stability and success rate of hydrophilic nanostructured implants placed via osteotome sinus floor elevation (OSFE) without grafting material or using beta-tricalcium phosphate (beta-TCP), deproteinized bovine bone (DBB), or their combination, and also to assess three-dimensional volumetric stability of endo-sinus bone gained in the aforementioned conditions. Materials and Methods: OSFE with simultaneous implant placement (10-mm long SLActive-BL (R), Straumann, Basel, Switzerland) was performed. Grafting materials were randomly allocated to implant sites, whereas one site was left without graft. Implant stability was measured by resonance frequency analysis over 6 months. Implant success was evaluated after 2 years of loading. Volume of new endo-sinus bone was calculated from CBCT images using 3D Slicer (R) software. Results: A total of 180 implants were inserted into posterior maxilla of 45 patients with 6.59 +/- 0.45 mm of residual bone height, and all remained successful after 2 years. Implant stability steadily increased during healing, without significant difference between groups (p =.658). After 2 years, endo-sinus bone significantly shrank (p  lt .001) in all groups (DBB: 66.34%; beta-TCP: 61.44%; new bone formed from coagulum: 53.02%; beta-TCP + DBB: 33.47%). Conclusions: Endo-sinus bone gained after OSFE inevitably and significantly shrinks regardless of whether grafting material is applied or not. Grafting material offers no significant advantage to stability nor clinical success of hydrophilic and nanostructured implants placed simultaneously with OSFE.
PB  - Wiley, Hoboken
T2  - Clinical Implant Dentistry & Related Research
T1  - Two-Center Prospective, Randomized, Clinical, and Radiographic Study Comparing Osteotome Sinus Floor Elevation with or without Bone Graft and Simultaneous Implant Placement
VL  - 18
IS  - 5
SP  - 873
EP  - 882
DO  - 10.1111/cid.12373
ER  - 

@article{
author = "Marković, Aleksa and Mišić, Tijana and Calvo Guirado, Jose Luis and Delgado-Ruiz, Rafael and Janjić, Bojan and Abboud, Marcus",
year = "2016",
abstract = "Purpose: To evaluate stability and success rate of hydrophilic nanostructured implants placed via osteotome sinus floor elevation (OSFE) without grafting material or using beta-tricalcium phosphate (beta-TCP), deproteinized bovine bone (DBB), or their combination, and also to assess three-dimensional volumetric stability of endo-sinus bone gained in the aforementioned conditions. Materials and Methods: OSFE with simultaneous implant placement (10-mm long SLActive-BL (R), Straumann, Basel, Switzerland) was performed. Grafting materials were randomly allocated to implant sites, whereas one site was left without graft. Implant stability was measured by resonance frequency analysis over 6 months. Implant success was evaluated after 2 years of loading. Volume of new endo-sinus bone was calculated from CBCT images using 3D Slicer (R) software. Results: A total of 180 implants were inserted into posterior maxilla of 45 patients with 6.59 +/- 0.45 mm of residual bone height, and all remained successful after 2 years. Implant stability steadily increased during healing, without significant difference between groups (p =.658). After 2 years, endo-sinus bone significantly shrank (p  lt .001) in all groups (DBB: 66.34%; beta-TCP: 61.44%; new bone formed from coagulum: 53.02%; beta-TCP + DBB: 33.47%). Conclusions: Endo-sinus bone gained after OSFE inevitably and significantly shrinks regardless of whether grafting material is applied or not. Grafting material offers no significant advantage to stability nor clinical success of hydrophilic and nanostructured implants placed simultaneously with OSFE.",
publisher = "Wiley, Hoboken",
journal = "Clinical Implant Dentistry & Related Research",
title = "Two-Center Prospective, Randomized, Clinical, and Radiographic Study Comparing Osteotome Sinus Floor Elevation with or without Bone Graft and Simultaneous Implant Placement",
volume = "18",
number = "5",
pages = "873-882",
doi = "10.1111/cid.12373"
}

Marković, A., Mišić, T., Calvo Guirado, J. L., Delgado-Ruiz, R., Janjić, B.,& Abboud, M.. (2016). Two-Center Prospective, Randomized, Clinical, and Radiographic Study Comparing Osteotome Sinus Floor Elevation with or without Bone Graft and Simultaneous Implant Placement. in Clinical Implant Dentistry & Related Research
Wiley, Hoboken., 18(5), 873-882.
https://doi.org/10.1111/cid.12373

Marković A, Mišić T, Calvo Guirado JL, Delgado-Ruiz R, Janjić B, Abboud M. Two-Center Prospective, Randomized, Clinical, and Radiographic Study Comparing Osteotome Sinus Floor Elevation with or without Bone Graft and Simultaneous Implant Placement. in Clinical Implant Dentistry & Related Research. 2016;18(5):873-882.
doi:10.1111/cid.12373 .

Marković, Aleksa, Mišić, Tijana, Calvo Guirado, Jose Luis, Delgado-Ruiz, Rafael, Janjić, Bojan, Abboud, Marcus, "Two-Center Prospective, Randomized, Clinical, and Radiographic Study Comparing Osteotome Sinus Floor Elevation with or without Bone Graft and Simultaneous Implant Placement" in Clinical Implant Dentistry & Related Research, 18, no. 5 (2016):873-882,
https://doi.org/10.1111/cid.12373 . .

TY  - JOUR
AU  - Delgado-Ruiz, Rafael
AU  - Calvo Guirado, Jose Luis
AU  - Abboud, Marcus
AU  - Piedad Ramirez-Fernandez, Maria
AU  - Eduardo Mate-Sanchez, Jose
AU  - Negri, Bruno
AU  - Gomez-Moreno, Gerardo
AU  - Marković, Aleksa
PY  - 2015
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1970
AB  - PurposeTo describe contact, thickness, density, and orientation of connective tissue fibers around healing abutments of different geometries by means of a new method using coordinates. Materials and MethodsFollowing the bilateral extraction of mandibular premolars (P2, P3, and P4) from six fox hound dogs and a 2-month healing period, 36 titanium implants were inserted, onto which two groups of healing abutments of different geometry were screwed: Group A (concave abutments) and Group B (wider healing abutment). After 3 months the animals were sacrificed and samples extracted containing each implant and surrounding soft and hard tissues. Histological analysis was performed without decalcifying the samples by means of circularly polarized light under optical microscope and a system of vertical and horizontal coordinates across all the connective tissue in an area delimited by the implant/abutment, epithelium, and bone tissue. ResultsIn no case had the connective tissue formed a connection to the healing abutment/implant in the internal zone; a space of 3510m separated the connective tissue fibers from the healing abutment surface. The total thickness of connective tissue in the horizontal direction was significantly greater in the medial zone in Group B than in Group A (p lt .05). The orientation of the fibers varied according to the coordinate area so that internal coordinates showed a higher percentage of parallel fibers in Group A (p lt .05) and a higher percentage of oblique fibers in Group B (p lt .05); medial coordinates showed more oblique fibers (p lt .05); and the area of external coordinates showed the highest percentage of perpendicular fibers (p lt .05). The fiber density was higher in the basal and medial areas (p lt .05). ConclusionsAbutment geometry influences the orientation of collagen fibers; therefore, an abutment with a profile wider than the implant platform favors oblique and perpendicular orientation of collagen fibers and greater connective tissue thickness.
PB  - Wiley, Hoboken
T2  - Clinical Implant Dentistry & Related Research
T1  - Connective Tissue Characteristics around Healing Abutments of Different Geometries: New Methodological Technique under Circularly Polarized Light
VL  - 17
IS  - 4
SP  - 667
EP  - 680
DO  - 10.1111/cid.12161
ER  - 

@article{
author = "Delgado-Ruiz, Rafael and Calvo Guirado, Jose Luis and Abboud, Marcus and Piedad Ramirez-Fernandez, Maria and Eduardo Mate-Sanchez, Jose and Negri, Bruno and Gomez-Moreno, Gerardo and Marković, Aleksa",
year = "2015",
abstract = "PurposeTo describe contact, thickness, density, and orientation of connective tissue fibers around healing abutments of different geometries by means of a new method using coordinates. Materials and MethodsFollowing the bilateral extraction of mandibular premolars (P2, P3, and P4) from six fox hound dogs and a 2-month healing period, 36 titanium implants were inserted, onto which two groups of healing abutments of different geometry were screwed: Group A (concave abutments) and Group B (wider healing abutment). After 3 months the animals were sacrificed and samples extracted containing each implant and surrounding soft and hard tissues. Histological analysis was performed without decalcifying the samples by means of circularly polarized light under optical microscope and a system of vertical and horizontal coordinates across all the connective tissue in an area delimited by the implant/abutment, epithelium, and bone tissue. ResultsIn no case had the connective tissue formed a connection to the healing abutment/implant in the internal zone; a space of 3510m separated the connective tissue fibers from the healing abutment surface. The total thickness of connective tissue in the horizontal direction was significantly greater in the medial zone in Group B than in Group A (p lt .05). The orientation of the fibers varied according to the coordinate area so that internal coordinates showed a higher percentage of parallel fibers in Group A (p lt .05) and a higher percentage of oblique fibers in Group B (p lt .05); medial coordinates showed more oblique fibers (p lt .05); and the area of external coordinates showed the highest percentage of perpendicular fibers (p lt .05). The fiber density was higher in the basal and medial areas (p lt .05). ConclusionsAbutment geometry influences the orientation of collagen fibers; therefore, an abutment with a profile wider than the implant platform favors oblique and perpendicular orientation of collagen fibers and greater connective tissue thickness.",
publisher = "Wiley, Hoboken",
journal = "Clinical Implant Dentistry & Related Research",
title = "Connective Tissue Characteristics around Healing Abutments of Different Geometries: New Methodological Technique under Circularly Polarized Light",
volume = "17",
number = "4",
pages = "667-680",
doi = "10.1111/cid.12161"
}

Delgado-Ruiz, R., Calvo Guirado, J. L., Abboud, M., Piedad Ramirez-Fernandez, M., Eduardo Mate-Sanchez, J., Negri, B., Gomez-Moreno, G.,& Marković, A.. (2015). Connective Tissue Characteristics around Healing Abutments of Different Geometries: New Methodological Technique under Circularly Polarized Light. in Clinical Implant Dentistry & Related Research
Wiley, Hoboken., 17(4), 667-680.
https://doi.org/10.1111/cid.12161

Delgado-Ruiz R, Calvo Guirado JL, Abboud M, Piedad Ramirez-Fernandez M, Eduardo Mate-Sanchez J, Negri B, Gomez-Moreno G, Marković A. Connective Tissue Characteristics around Healing Abutments of Different Geometries: New Methodological Technique under Circularly Polarized Light. in Clinical Implant Dentistry & Related Research. 2015;17(4):667-680.
doi:10.1111/cid.12161 .

Delgado-Ruiz, Rafael, Calvo Guirado, Jose Luis, Abboud, Marcus, Piedad Ramirez-Fernandez, Maria, Eduardo Mate-Sanchez, Jose, Negri, Bruno, Gomez-Moreno, Gerardo, Marković, Aleksa, "Connective Tissue Characteristics around Healing Abutments of Different Geometries: New Methodological Technique under Circularly Polarized Light" in Clinical Implant Dentistry & Related Research, 17, no. 4 (2015):667-680,
https://doi.org/10.1111/cid.12161 . .