-
Schriwer, Christian & Rønold, Hans Jacob
(2021).
Sementeringsprosedyrer for permanente indirekte restaureringer.
Den norske tannlegeforenings tidende.
ISSN 0029-2303.
131(6),
s. 586–596.
-
Dahl, Bjørn Einar; Rønold, Hans Jacob & Dahl, Jon Einar
(2017).
Internal Fit of Fixed Dental Prostheses Made From Zirconia.
-
Sagen, Mina Aker; Kvam, Ketil; Ruyter, Eystein I.; Dahl, Jon Einar & Rønold, Hans Jacob
(2017).
Adhesion of Surface Modified Zirconia to Dentin Using Resin Cement.
-
Herlofson, Bente Brokstad; Preus, Hans Ragnar; Rønold, Hans Jacob; Ørstavik, Dag & Reppen, Kjetil
(2017).
Hvorfor gikk det galt?
-
Dahl, Jon Einar & Rønold, Hans Jacob
(2016).
Internal fit of single crowns produced by CAD-CAM and lost-wax metal casting technique assessed by the triple-scan protocol.
The Journal of prosthetic dentistry (Print).
ISSN 0022-3913.
doi:
10.1016/j.prosdent.2016.06.017.
-
Preus, Hans Ragnar; Reppen, Kjetil & Rønold, Hans Jacob
(2016).
Kurs i behandlingsplanlegging.
-
Rønold, Hans Jacob; Saxegaard, Erik & Ellingsen, Jan Eirik
(2015).
Hvordan sikre en god start på en vellykket tannbehandling?
Den norske tannlegeforenings tidende.
ISSN 0029-2303.
125(2),
s. 162–167.
-
-
Skjerven, Henrik; Herlofson, Bente Brokstad; Wohlfahrt, Johan Caspar; Rønold, Hans Jacob & Ellingsen, Jan Eirik
(2014).
Evaluation of the Precision of implant placement using stereolithographic guides.
-
Villa , Oscar; Lyngstadaas, Ståle Petter; Monjo, Marta; Rønold, Hans Jacob; Petzold, Christiane & Wohlfahrt, Johan Caspar
(2013).
The influence of suture remnants on peri-implant bone healing - A pilot animal experimental study.
Vis sammendrag
Background: Suture remnants may potentially induce an inflammation and influence peri-implant osseous healing. It might thus be preferable to use a resorbable suture material in order to avoid soft and hard tissue complications.
Aim: To evaluate the influence of remnants of suture filaments on osseointegration in a rabbit tibial model.
Material and methods: In this pilot animal experimental study calibrated defects were prepared in the tibia of 5 chinchilla rabbits. Four sites were prepared in each animal and randomized to one of the three groups. Test filaments of nylon and chitosan were placed at the prepared implant sites before implant placement. A sham site was used as control. A coin-shaped machined titanium implant covered with a teflon cap and a preshaped maxillofacial bone plate were seated over the prepared cortical bone. After a healing period of 4 weeks, rabbits were euthanized and the tibial bone with the implants was exposed and removed. The implants were subjected to a pull-out test procedure. Wound fluid was collected with filter papers for the analyses of lactate dehydrogenase activity, alkaline phosphatase activity and total protein. Total-RNA was isolated from the peri-implant bone tissue. Real time PCR was performed for the following target genes: vacuolar type proton ATPase, insulin like growth factor-1, bone morphogenetic protein-2 , collagen-1, interleukin-10, interleukin-6, osteocalcin, calcitonin receptor, tartrate-resistant acid phosphatase and tumor necrosis factor-α. A one-way analysis of variance was used to detect differences across groups with the significance level set at 0.05.
Results: When comparing the data across the three groups no statistically significant differences were found. There was, however, a trend towards a reduced pull-out force for the nylon group (Nylon: 23.0 ± 12.8; Chitosan: 33.9 ± 11.3; Sham 33.6 ± 24.0). Similarly, the resorption bone marker vacuolar type proton ATPase was increased in the nylon group compared to the sham and chitosan groups. The chitosan group showed lower ALP activity and lower expression of osteocalcin compared to the nylon group.
Conclusions and clinical implications: In this closed surgical model, peri-implant bone healing was only marginally affected by the different materials tested. There was, however, a tendency toward better osseointegration and less expression of bone resorption markers in the sham and chitosan groups as compared to the nylon group. The number of animals was low in this pilot study and further research is warranted to explore this issue.
The influence of suture remnants on peri-implant bone healing - A pilot animal experimental study.
-
Ellingsen, Jan Eirik & Rønold, Hans Jacob
(2012).
Gjenomtenkt behandlingsplan - essensielt for en forutsigbar implantatbasert protetisk behandling.
-
Monjo, Marta; Lyngstadaas, Ståle Petter; Rubert, Marina; Taxt-Lamolle, Sebastien Francis Michel; Rønold, Hans Jacob & Ellingsen, Jan Eirik
(2011).
Increased Fixation of Fluoride-modified Implants in Osteoporotic Rats.
-
Verket, Anders; Lyngstadaas, Ståle Petter; Rønold, Hans Jacob & Wohlfahrt, Johan Caspar
(2011).
Implants inserted in Extraction Sockets Grafted with Porous Titanium Granules.
-
Wohlfahrt, Johan Caspar; Aass, Anne Merete; Rønold, Hans Jacob; Karlsson, Stig; Ellingsen, Jan Eirik & Saxegaard, Erik
(2010).
Porous titanium granules in the surgical treatment of peri-implant osseous defects - a randomized clinical trial.
-
Wohlfahrt, Johan Caspar; Rønold, Hans Jacob; Heijl, L; Haugen, Håvard Jostein; Aass, Anne Merete & Lyngstadaas, Ståle Petter
(2010).
Porous titanium granules in degree II furcation defects - an animal experimental study.
-
Wohlfahrt, Johan Caspar; Rønold, Hans Jacob; Aass, Anne Merete; Heijl, Lars & Lyngstadaas, Ståle Petter
(2009).
Porous titanium granules in degree II furcation defects- an animal experimental study.
-
Wohlfahrt, Johan Caspar; Aass, Anne Merete; Rønold, Hans Jacob; Karlsson, Stig; Ellingsen, Jan Eirik & Saxegaard, Erik
[Vis alle 7 forfattere av denne artikkelen]
(2009).
Porous Titanium Granules in the Surgical Treatment of Peri-Implant Osseous Defects – A Randomized Clinical Study.
-
Wohlfahrt, Johan Caspar; Aass, Anne Merete; Rønold, Hans Jacob & Lyngstadaas, Ståle Petter
(2008).
Titanium Granules for Treatment of Periimplantitis Osseous Defects - A Pilot Randomized Clinical Study with Human Histology.
-
Wohlfahrt, Johan Caspar; Rønold, Hans Jacob; Aass, Anne Merete; Monjo, Marta & Lyngstadaas, Ståle Petter
(2008).
Porous Titanium Granules in Rabbit Tibia Critical Size Osseous Defects.
-
Monjo, Marta; Lyngstadaas, Ståle Petter; Rønold, Hans Jacob; Lamolle, Sebastien Francis & Ellingsen, Jan Eirik
(2006).
EFFECT OF FLUORIDE-MODIFIED TITANIUM IMPLANTS ON INFLAMMATION, BONE FORMATION AND RESORPTION MARKERS AT THE BONE-IMPLANT INTERFACE.
-
Lyngstadaas, Ståle Petter; Monjo, Marta; Lamolle, Sebastien Francis; Rønold, Hans Jacob & Ellingsen, Jan Eirik
(2006).
Expression of markers during bone healing and their significance in evaluating bone bonding and implant performance.
-
Lamolle, Sebastien Francis; Monjo, Marta; Haugen, Håvard Jostein; Petzold, Christiane; Rønold, Hans Jacob & Lyngstadaas, Ståle Petter
[Vis alle 7 forfattere av denne artikkelen]
(2006).
Characterization and in vivo function of hydrofluoric acid modified titanium implants.
-
Monjo, Marta; Lyngstadaas, Ståle Petter; Rønold, Hans Jacob; Yousefi, Shahbaz & Ellingsen, Jan Eirik
(2006).
Fluoride-modified titanium implants enhance osteoblast differentiation both in vitro and in vivo.
-
Monjo, Marta; Lamolle, Sebastien Francis; Ellingsen, Jan Eirik; Rønold, Hans Jacob & Lyngstadaas, Ståle Petter
(2005).
Markers for early implant performance correlating with bonding strength between titanium implants and bone.
-
Monjo, Marta; Lamolle, Sebastien Francis; Rønold, Hans Jacob; Ellingsen, Jan Eirik & Lyngstadaas, Ståle Petter
(2005).
Osteocalcin mRNA expression positively correlates with bone attachment of titanium implants in the rabbit tibiae.
-
Riksen, Elisabeth Aurstad; Berntsen, Christian Skoe; Ellingsen, Jan Eirik; Deutsch, Dan; Rønold, Hans Jacob & Lyngstadaas, Ståle Petter
(2003).
The Effects of EMD and rhAmelogenin on Titanium Implant Attachment in Cortical Bone.
-
Berntsen, Christian Skoe; Riksen, Elisabeth Aurstad; Ellingsen, Jan Eirik; Slaby, Ivan; Rønold, Hans Jacob & Lyngstadaas, Ståle Petter
(2003).
Improved Titanium Implant Attachment in Cortical Bone by Application of rAmelin.
-
Ellingsen, Jan Eirik; Rønold, Hans Jacob; Boström, Kristina Junemo; Holmén, Anders & Hansson, Stig
(2003).
Enhanced bone-to-implant attachment of fluoride-modified titanium implants.
-
Riksen, Elisabeth Aurstad; Rønold, Hans Jacob; Ellingsen, Jan Eirik & Lyngstadaas, Ståle Petter
(2003).
�The effect of EMD and rAmelogenin on titanium implant attachment in cortical bone�.
-
Riksen, Elisabeth Aurstad; Rønold, Hans Jacob & Ellingsen, Jan Eirik
(2002).
�An in vivo method for measuring bone attachment of bone- anchored implants�.
-
Rønold, Hans Jacob; Lyngstadaas, Ståle Petter & Ellingsen, Jan Eirik
(2002).
The effect of surface roughness on functional attachment measured by tensile testing.
-
Riksen, Elisabeth Aurstad; Berntsen, Christian Skoe; Rønold, Hans Jacob; Ellingsen, Jan Eirik & Lyngstadaas, Ståle Petter
(2002).
An in vivo method for measuring extracellular matrix guided osseointegration.
-
Berntsen, Christian Skoe; Riksen, Elisabeth Aurstad; Rønold, Hans Jacob; Ellingsen, Jan Eirik & Lyngstadaas, Ståle Petter
(2002).
Molecular force probing of amelogenin-titanium interactions.
-
Rønold, Hans Jacob
(2002).
The effect of surface roughness on functional attachment as measured by tensile test method.
-
Maawan, Khadra; Rønold, Hans Jacob & Haanæs, Hans R
(2002).
Low level laser effect on the osseointegration between implants and bone.
-
Rønold, Hans Jacob; Ellingsen, Jan Eirik & Lyngstadaas, Ståle Petter
(2002).
Bone attachment assessed by tensile testing of osseointegrating coin-shaped titanium implants.
-
Rønold, Hans Jacob; Lyngstadaas, Ståle Petter & Ellingsen, Jan Eirik
(2001).
Bone bonding assessed by tensile testing of osseointegrating coin-shaped titanium implants.
Transactions of the Society for Biomaterials.
ISSN 1527-6317.
-
Ellingsen, Jan Eirik & Rønold, Hans Jacob
(2001).
Improved bone response to chemically modified titanium implants.
Transactions of the Society for Biomaterials.
ISSN 1527-6317.
-
Rønold, Hans Jacob & Ellingsen, Jan Eirik
(2001).
A Study on the Effect of Macro and Micro Roughness of Titanium Implants on Functional Attachment in Bone.
-
Rønold, Hans Jacob & Ellingsen, Jan Eirik
(2001).
A Study on the Effect of Acid-Etched Surfaces of Titanium Implants on Functional Attachment in Bone.
-
Duyck, Jocke; Ellingsen, Jan Eirik; Rønold, Hans Jacob; Oosterwyck, H Van; Sloten, J Van der & Naert, Ignace
(2000).
Bone responce on static and dynamic loading of implants: a study in rabbits.
Journal of Dental Research.
ISSN 0022-0345.
79.
-
Duyck, Jocke; Ellingsen, Jan Eirik; Rønold, Hans Jacob; Oosterwyck, H. Van; Sloten, J. Vander & Naert, Ignace
(2000).
Bone response on static and dynamic loading of implants: a study in rabbits.
-
Rønold, Hans Jacob; Ellingsen, Jan Eirik & Lyngstadaas, Ståle Petter
(2000).
Functional attachment and bone contact in microrough titanium implants.
-
Rønold, Hans Jacob & Ellingsen, Jan Eirik
(2000).
AN IN-VIVO METHOD FOR FUNCTIONAL ATTACHMENT MESSUREMENTS IN BONE ANCHORED IMPLANTS.
-
Rønold, Hans Jacob & Ellingsen, Jan Eirik
(1999).
A study on the effect of surface roughness of titanium implants on retention in bone.
-
Rønold, Hans Jacob
(2003).
The effect of surface micro structure on titanium implant attachment to bone.
Lobo Media AS.
ISSN 82-497-0160-7.