Johan Caspar Wohlfahrt

• Khan, Sadia Nazir; Koldsland, Odd Carsten; Roos-Jansåker, Ann-Marie; Wohlfahrt, Johan Caspar; Verket, Anders & Mdala, Ibrahimu [Vis alle 9 forfattere av denne artikkelen] (2023). Non-surgical treatment of mild to moderate peri-implantitis with an oscillating chitosan brush or a titanium curette—12-month follow-up of a multicenter randomized clinical trial. Clinical Oral Implants Research. ISSN 0905-7161. doi: 10.1111/clr.14078.
• Khan, Sadia Nazir; Koldsland, Odd Carsten; Roos-Jansåker, Ann-Marie; Wohlfahrt, Johan Caspar; Verket, Anders & Mdala, Ibrahimu [Vis alle 9 forfattere av denne artikkelen] (2022). Non-surgical treatment of mild to moderate peri-implantitis using an oscillating chitosan brush or a titanium curette—A randomized multicentre controlled clinical trial. Clinical Oral Implants Research. ISSN 0905-7161. doi: 10.1111/clr.14007. Fulltekst i vitenarkiv
• Thieu, Minh Khai Le; Homayouni, Amin; Hæren, Lena Ringsby; Tiainen, Hanna; Verket, Anders & Ellingsen, Jan Eirik [Vis alle 13 forfattere av denne artikkelen] (2021). Impact of simultaneous placement of implant and block bone graft substitute: an in vivo peri-implant defect model. Biomaterials Research. ISSN 1226-4601. 25(43). doi: 10.1186/s40824-021-00245-3. Fulltekst i vitenarkiv
• Hussain, Badra; Karaca, Ebru Ozkan; Kuru, Bahar Eren; Gursoy, Hare; Haugen, Håvard Jostein & Wohlfahrt, Johan Caspar (2021). Treatment of residual pockets using an oscillating chitosan device versus regular curettes alone—a randomized, feasibility parallel-arm clinical trial. Journal of Periodontology. ISSN 0022-3492. doi: 10.1002/JPER.21-0496. Fulltekst i vitenarkiv
• Wohlfahrt, Johan Caspar; Aass, Anne Merete & Koldsland, Odd Carsten (2019). Treatment of peri-implant mucositis with a chitosan brush? A pilot randomized clinical trial. International Journal of Dental Hygiene. ISSN 1601-5029. s. 1–7. doi: 10.1111/idh.12381.
• Verket, Anders; Lyngstadaas, Ståle Petter; Tiainen, Hanna; Rønold, Hans Jacob & Wohlfahrt, Johan Caspar (2018). Impact of particulate deproteinized bovine bone mineral and porous titanium granules on early stability and osseointegration of dental implants in narrow marginal circumferential bone defects. International Journal of Oral & Maxillofacial Surgery. ISSN 0901-5027. 47(8), s. 1086–1094. doi: 10.1016/j.ijom.2018.02.007. Fulltekst i vitenarkiv
• Koldsland, Odd Carsten; Wohlfahrt, Johan Caspar & Aass, Anne Merete (2018). Surgical treatment of peri-implantitis: Prognostic indicators of short-term results. Journal of Clinical Periodontology. ISSN 0303-6979. 45(1), s. 100–113. doi: 10.1111/jcpe.12816.
• Zeza, Blerina; Wohlfahrt, Johan Caspar & Pilloni, Andrea (2017). Chitosan brush for professional removal of plaque in mild peri-implantitis. Minerva Stomatologica. ISSN 0026-4970. 66(4), s. 163–168. doi: 10.23736/S0026-4970.17.04040-7.
• Wohlfahrt, Johan Caspar; Evensen, Bjørnar; Zeza, B; Jansson, Harald; Pilloni, A & Roos-Jansåker, AM [Vis alle 10 forfattere av denne artikkelen] (2017). A novel non-surgical method for mild peri-implantitis- a multicenter consecutive case series. International Journal of Implant Dentistry. ISSN 2198-4034. s. 1–8. doi: 10.1186/s40729-017-0098-y.
• Andersen, Heidi; Aass, Anne Merete & Wohlfahrt, Johan Caspar (2017). Porous titanium granules in the treatment of peri-implant osseous defects-a 7-year follow-up study. International Journal of Implant Dentistry. ISSN 2198-4034. s. 1–7. doi: 10.1186/s40729-017-0106-2.
• Villa , Oscar; Wohlfahrt, Johan Caspar; Koldsland, Odd Carsten; Brookes, Steven J; Lyngstadaas, Ståle Petter & Aass, Anne Merete [Vis alle 7 forfattere av denne artikkelen] (2016). EMD in periodontal regenerative surgery modulates cytokine profiles: A randomised controlled clinical trial. Scientific Reports. ISSN 2045-2322. 6, s. 1–9. doi: 10.1038/srep23060. Fulltekst i vitenarkiv
• Verket, Anders; Müller, Benjamin; Wohlfahrt, Johan Caspar; Lyngstadaas, Ståle Petter; Ellingsen, Jan Eirik & Haugen, Håvard Jostein [Vis alle 7 forfattere av denne artikkelen] (2016). TiO2 scaffolds in peri-implant dehiscence defects: an experimental pilot study. Clinical Oral Implants Research. ISSN 0905-7161. 27(10), s. 1200–1206. doi: 10.1111/clr.12725.
• Lutnæs, Odd Bjørn; Wohlfahrt, Johan Caspar; Aass, Anne Merete & Koldsland, Odd Carsten (2015). Tilleggseffekten av fotodynamisk terapi ved ikke-kirurgisk periodontal behandling. Den norske tannlegeforenings tidende. ISSN 0029-2303. 125(8), s. 692–697.
• Villa , Oscar; Wohlfahrt, Johan Caspar; Mdala, Ibrahimu; Petzold, Christiane; Reseland, Janne Elin & Snead, Malcolm L. [Vis alle 7 forfattere av denne artikkelen] (2015). Proline-rich peptide mimic effects of EMD in rat oral mucosal incisional wound healing. Journal of Periodontology. ISSN 0022-3492. 86(12), s. 1386–1395. doi: 10.1902/jop.2015.150207.
• Villa , Oscar; Lyngstadaas, Ståle Petter; Monjo, Marta; Satué, María; Rønold, Hans Jacob & Petzold, Christiane [Vis alle 7 forfattere av denne artikkelen] (2015). Suture materials affect peri-implant bone healing and implant osseointegration. Journal of Oral Science. ISSN 1343-4934. 57(3), s. 219–227. doi: 10.2334/josnusd.57.219.
• Verket, Anders; Lyngstadaas, Ståle Petter; Rønold, Hans Jacob & Wohlfahrt, Johan Caspar (2014). Osseointegration of dental implants in extraction sockets preserved with porous titanium granules - an experimental study. Clinical Oral Implants Research. ISSN 0905-7161. 25(2), s. E100–E108. doi: 10.1111/clr.12070.
• Andersen, Jostein; Koldsland, Odd Carsten; Aass, Anne Merete & Wohlfahrt, Johan Caspar (2014). Langtidsresultater etter kirurgisk korrigering av bukkale gingivale retraksjoner : en litteraturstudie. Den norske tannlegeforenings tidende. ISSN 0029-2303. 124(10), s. 810–817.
• Wohlfahrt, Johan Caspar; Aass, Anne Merete; Granfeldt, Finn; Lyngstadaas, Ståle Petter & Reseland, Janne Elin (2014). Sulcus fluid bone marker levels and the outcome of surgical treatment of peri-implantitis. Journal of Clinical Periodontology. ISSN 0303-6979. 41(4), s. 424–431. doi: 10.1111/jcpe.12229.
• Henderson, Elisabet; Schneider, Sigurd; Petersen, Fernanda Cristina; Haugen, Håvard Jostein; Wohlfahrt, Johan Caspar & Ekstrand, Karl [Vis alle 7 forfattere av denne artikkelen] (2013). Chemical debridement of contaminated titanium surfaces: An in vitro study. Acta Odontologica Scandinavica. ISSN 0001-6357. 71(3-4), s. 957–964. doi: 10.3109/00016357.2012.734423. Vis sammendrag

  Abstract Objective. To compare the efficacy of different chemical solutions when used for chemical debridement of biofilm contaminated titanium surfaces in an in-vitro experimental study. Materials and methods. Commercially pure titanium discs with a diameter of 6.2 mm and height of 2 mm, mirror-polished with a measured surface amplitude value S(A) = 0.037 μm ± 0.009 were used as test-surfaces. A biofilm was simulated with multi-layers of Staphylococcus epidermidis ATCC359844 covering the entire titanium surface. The chemical agents tested were: 3% H(2)O(2), 0.2% Chlorhexidine, 24% EDTA-gel, 3% H(2)O(2) mixed with 1.6 g/L TiO(2) and sterile saline solution. The decontamination effect was evaluated by optical density analysis using spectrophotometry and with scanning electron microscopy (SEM) images of the remaining biofilm. Results. The suspensions of 3% H(2)O(2) and 1.6 g/L TiO(2) or 3% H(2)O(2) alone were the most effective in removing S. epidermidis biofilms (p < 0.05), whereas 0.2% chlorhexidine or 24% EDTA gel had no significant effects. SEM images of the remaining biofilms supported the quantitative results indicating the higher efficacy of 3% H(2)O(2) and 1.6 g/L TiO(2) or 3% H(2)O(2) alone. It also revealed that EDTA, despite a non-significant effect on reducing the amount of established biofilms, was able to alter the biofilm architecture, as demonstrated by increased interspaced regions. Conclusions. In this in vitro study the decontamination potential of a suspension of 3% H(2)O(2) and 1.6 g/L TiO(2) or 3% H(2)O(2) alone were encouraging. Whether such procedures would have a similar effect in vivo remains to be determined.

• Haugen, Håvard Jostein; Monjo Cabrer, Marta; Rubert, Marina; Verket, Anders; Lyngstadaas, Ståle Petter & Ellingsen, Jan Eirik [Vis alle 8 forfattere av denne artikkelen] (2013). Porous Ceramic Titanium Dioxide Scaffolds Promote Bone Formation in Rabbit Peri-Implant Cortical Defect Model. Acta Biomaterialia. ISSN 1742-7061. 9(2), s. 5390–5399. doi: 10.1016/j.actbio.2012.09.009. Vis sammendrag

  Titanium oxide (TiO2) scaffolds have previously been reported to exhibit very low mechanical strength. However, we have been able to produce a scaffold that features a high interconnectivity, a porosity of 91% and a compressive strength above 1.2 MPa. This study analysed the in vivo performance of the porous TiO2 scaffolds in a peri-implant cortical defect model in the rabbit. After 8 weeks of healing, morphological microCT analyses of the defects treated with the TiO2 scaffolds had significantly higher bone volume, bone surface and bone surface to volume ratio when compared to sham, both in the cortical and bone marrow compartment. No adverse effects, i.e. tissue necrosis or inflammation as measured by LDH activity and real-time RT-PCR analysis were observed. Moreover, the scaffold did not hinder bone growth onto the adjacent cortical titanium implant. Histology clearly demonstrated new bone formation in the cortical sections of the defects and presence of newly formed bone in close proximity to the scaffold surface and the surface of the adjacent Ti implant. Bone to material contact between the newly formed bone and the scaffold was observed in the histological sections. Islets of new bone were also present in the marrow compartment albeit in scarce amounts. In conclusion, the present investigation demonstrates that TiO2 scaffolds osseointegrate well and is a suitable scaffold for peri-implant bone healing and growth. --------------------------------------------------------------------------------

• Verket, Anders; Lyngstadaas, Ståle Petter; Rasmusson, Lars; Haanæs, Hans R; Wallstrøm, M. & Wall, Gert [Vis alle 7 forfattere av denne artikkelen] (2013). Maxillary Sinus Augmentation with Porous Titanium Granules: A Microcomputed Tomography and Histologic Evaluation of Human Biopsy Specimens. International Journal of Oral & Maxillofacial Implants. ISSN 0882-2786. 28(3), s. 721–728. doi: 10.11607/jomi.2853. Vis sammendrag

  PURPOSE: The aim of this study was to assess bone ingrowth into porous titanium granules used for maxillary sinus augmentation. MATERIALS AND METHODS: Eighteen biopsy specimens from 17 patients participating in a clinical trial on sinus augmentation using porous titanium granules (PTG) were received in the laboratory. The specimens (trephine cores of 4.5 mm) were obtained 6 months after PTG placement. After being embedded in methacrylate, the samples were scanned in a microcomputed tomography (micro-CT) scanner. Specimens were then cut along the long axis and central slices were ground to 70 μm before staining with hematoxylin and eosin. RESULTS: The micro-CT analysis demonstrated an average bone fill of 19% (standard deviation [SD] 5.8%), whereas the graft material occupied 22.7% (SD 4.7%). The volume of newly formed bone decreased with the distance from the residual bone of the sinus floor. Two-dimensional histomorphometric analysis demonstrated a mean area of new bone of 16.1% (SD 9.4%). The PTG alone occupied 25.9% of the total mean area (SD 6.1%). The newly formed bone consisted mainly of woven bone growing in close contact with the granules and bridging the intergranular space. The remaining area was occupied predominantly by nonmineralized connective tissue. There were no signs of inflammation in any of the biopsy specimens. CONCLUSIONS: After 6 months, new bone had formed at a similar rate and quality as has been reported for other well-recognized bone graft substitutes. The new bone formed in close contact with the PTG, suggesting that the material is osteoconductive.

• Bashara, Haitham; Wohlfahrt, Johan Caspar; Polyzois, Ioannis; Lyngstadaas, Ståle Petter; Renvert, Stefan & Claffey, Noel (2012). The effect of permanent grafting materials on the preservation of the buccal bone plate after tooth extraction: an experimental study in the dog. Clinical Oral Implants Research. ISSN 0905-7161. 23(8), s. 911–917. doi: 10.1111/j.1600-0501.2011.02240.x.
• Tiainen, Hanna; Verket, Anders; Haugen, Håvard Jostein; Lyngstadaas, Ståle Petter & Wohlfahrt, Johan Caspar (2012). Dimensional ridge preservation with a novel highly porous TiO2 scaffold: an experimental study in minipigs. International Journal of Biomaterials. ISSN 1687-8787. doi: 10.1155/2012/851264.
• Wohlfahrt, Johan Caspar; Lyngstadaas, Ståle Petter; Rønold, Hans Jacob; Saxegaard, Erik; Ellingsen, Jan Eirik & Karlsson, Stig [Vis alle 7 forfattere av denne artikkelen] (2012). Porous Titanium Granules in the Surgical Treatment of Peri-Implant Osseous Defects: A Randomized Clinical Trial. International Journal of Oral & Maxillofacial Implants. ISSN 0882-2786. 27(2), s. 401–410.
• Wohlfahrt, Johan Caspar; Aass, Anne Merete; Rønold, Hans Jacob; Heijl, Lars; Haugen, Håvard Jostein & Lyngstadaas, Ståle Petter (2012). Microcomputed Tomographic and Histologic Analysis of Animal Experimental Degree II Furcation Defects Treated With Porous Titanium Granules or Deproteinized Bovine Bone. Journal of Periodontology. ISSN 0022-3492. 83(2), s. 211–221. doi: 10.1902/jop.2011.110128.
• Tiainen, Hanna; Wohlfahrt, Johan Caspar; Verket, Anders; Lyngstadaas, Ståle Petter & Haugen, Håvard Jostein (2012). Bone formation in TiO2 bone scaffolds in extraction sockets of minipigs. Acta Biomaterialia. ISSN 1742-7061. 8(6), s. 2384–2391. doi: 10.1016/j.actbio.2012.02.020. Vis sammendrag

  The osteoconductive capacity of TiO2 scaffolds was investigated by analysing the bone ingrowth into the scaffold structure following their placement into surgically modified extraction sockets in Gottingen minipigs. Non-critical size defects were used in order to ensure sufficient bone regeneration for the evaluation of bone ingrowth to the porous scaffold structure, and sham sites were used as positive control. Micro-CT analysis revealed 73.6 ± 11.1 % of the available scaffold pore space to be occupied by newly formed bone tissue, and the volumetric bone mineral density of the regenerated bone was comparable to that of the native cortical bone. Furthermore, histological evidence for vascularisation and presence of bone lamellae surrounding some of the blood vessels was observed also within the inner regions of the scaffold, indicating that the highly interconnected pore structure of the TiO2 scaffolds supports unobstructed formation of viable bone tissue within the entire scaffold structure. In addition, bone tissue was found in direct contact with 50.0 ± 21.5 % of the TiO2 struts demonstrating the good biocompatibility and osteoconductivity of the scaffold material. Keywords Bone scaffold; Titanium dioxide; Pore structure; Bone ingrowth; Implant integration Corresponding author. Copyright © 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

• Wohlfahrt, Johan Caspar; Lyngstadaas, Ståle Petter; Heijl, Lars & Aass, Anne Merete (2012). Porous Titanium Granules in the Treatment of Mandibular Class II Furcation Defects: A Consecutive Case Series. Journal of Periodontology. ISSN 0022-3492. 83(1), s. 61–69. doi: 10.1902/jop.2011.100769.
• Verket, Anders; Lyngstadaas, Ståle Petter; Rønold, Hans Jacob & Wohlfahrt, Johan Caspar (2012). Microcomputed Tomography and Histological Analysis of a Maxillary Implant Retrieved 19 Months After Placement and Indirect Sinus Augmentation With Biphasic Calcium Phosphate: A Case Report. Clinical Advances in Periodontics. ISSN 2573-8046. 4(1), s. 38–42. doi: 10.1902/cap.2012.120075.
• Wohlfahrt, Johan Caspar; Aass, Anne Merete; Rønold, Hans Jacob & Lyngstadaas, Ståle Petter (2011). Micro CT and human histological analysis of a peri-implant osseous defect grafted with porous titanium granules: a case report. International Journal of Oral & Maxillofacial Implants. ISSN 0882-2786. 26(1), s. 9–14.
• Monjo, Marta; Rubert, Marina; Wohlfahrt, Johan Caspar; Rønold, Hans Jacob; Ellingsen, Jan Eirik & Lyngstadaas, Ståle Petter (2010). In Vivo Performance Of Absorbable Collagen Sponges With Rosuvastatin In Critical-Size Cortical Bone Defects. Acta Biomaterialia. ISSN 1742-7061. 6(4), s. 1405–1412. doi: 10.1016/j.actbio.2009.09.027.
• Wohlfahrt, Johan Caspar; Monjo, Marta; Rønold, Hans Jacob; Aass, Anne Merete; Ellingsen, Jan Eirik & Lyngstadaas, Ståle Petter (2010). Porous titanium granules promote bone healing and growth in rabbit tibia peri-implant osseous defects. Clinical Oral Implants Research. ISSN 0905-7161. 21(2), s. 165–173. doi: 10.1111/j.1600-0501.2009.01813.x.
• Lyngstadaas, Ståle Petter; Wohlfahrt, Johan Caspar; Brookes, SJ; Paine, ML; Snead, Malcolm L. & Reseland, Janne Elin (2009). Enamel matrix proteins: old molecules for new applications. Orthodontics & craniofacial research. ISSN 1601-6335. 12(3), s. 243–253.
• Lyngstadaas, Ståle Petter; Wohlfahrt, Johan Caspar; Brooks, Steve; Paine, M.L.; Snead, M.L. & Reseland, Janne Elin (2009). Enamel matrix proteins; old molecules for new applications. Orthodontics & craniofacial research. ISSN 1601-6335. 12(3), s. 243–253. doi: 10.1111/j.1601-6343.2009.01459.x.
• Wohlfahrt, Johan Caspar; Wu, T; Hodges, JS; Hinrichs, JE & Michalowicz, BS (2006). No association between selected candidate gene polymorphisms and severe chronic periodontitis. Journal of Periodontology. ISSN 0022-3492. 77(3), s. 426–436.
• Wohlfahrt, Johan Caspar (2003). Elevation of the maxillary sinus for placement of endosseous dental implants. Northwest dent. ISSN 0029-2915. 82(3), s. 34–36.
• Wohlfahrt, Johan Caspar; Ternesten, A; Sahlin, P; Islam, Q & Stenman, G (1997). Cytogenetic and fluorescence in situ hybridization analyses of a microcystic adnexal carcinoma with del(6)(q23q25). Cancer Genetics and Cytogenetics. ISSN 0165-4608. 15(98), s. 106–110.

Se alle arbeider i Cristin

• Pihlstrom, Bruce L; Hodges, James S; Michalowicz, Bryan S.; Wohlfahrt, Johan Caspar & Garcia, Raul I (2018). Authors' response. The Journal of the American Dental Association (1939). ISSN 0002-8177. 149(9), s. 751–752. doi: 10.1016/j.adaj.2018.07.010.
• Villa , Oscar; Wohlfahrt, Johan Caspar; Mdala, Ibrahimu; Petzold, Christiane; Reseland, Janne Elin & Snead, Malcolm L. [Vis alle 7 forfattere av denne artikkelen] (2015). Proline-rich peptides accelerate oral mucosal wound healing.
• Wohlfahrt, Johan Caspar & Koldsland, Odd Carsten (2014). Peri-implantologi; hva vet vi, hva gjør vi og hva prøver vi å finne ut av.
• Wohlfahrt, Johan Caspar & Klepp, Morten (2014). Periodonti og peri-implantologi fra et vitenskapelig og klinisk ståsted.
• Wohlfahrt, Johan Caspar & Koldsland, Odd Carsten (2014). Pasienten har fått sitt implantat-hva nå?
• Wohlfahrt, Johan Caspar & Koldsland, Odd Carsten (2014). Peri-Implantit -Vad vet vi, vad gör vi, vad forskar vi på?
• Wohlfahrt, Johan Caspar (2014). The patient with the hopeless tooth versus the patient with peri-implantitis - What road do we want to go now?
• Wohlfahrt, Johan Caspar (2014). Diagnosis and treatment of peri-implant disease.
• Wohlfahrt, Johan Caspar; Lyngstadaas, Ståle Petter; Aass, Anne Merete & Koldsland, Odd Carsten (2014). Implant Maintenance with a Chitosan Brush –A Randomized Clinical Trial.
• 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.

• Tiainen, Hanna; Wiedmer, David; Wohlfahrt, Johan Caspar; Lyngstadaas, Ståle Petter & Haugen, Håvard Jostein (2013). Highly porous ceramic TiO2 scaffolds for bone repair.
• Tiainen, Hanna; Wiedmer, David; Wohlfahrt, Johan Caspar; Lyngstadaas, Ståle Petter & Haugen, Håvard Jostein (2013). Highly porous ceramic titanium dioxide scaffolds for bone repair.
• Wohlfahrt, Johan Caspar; Aass, Anne Merete; Grandfeldt, F.; Lyngstadaas, Ståle Petter & Reseland, Janne Elin (2012). Change in bone resorption markers in pen-implant sulcus fluid after surgical treatment of peri-implantitis. Bone. ISSN 8756-3282. 50, s. S116–S116. doi: 10.1016/j.bone.2012.02.358.
• Tiainen, Hanna; Wohlfahrt, Johan Caspar; Verket, Anders; Lyngstadaas, Ståle Petter & Haugen, Håvard Jostein (2012). Bone formation in TiO2 bone scaffolds in extraction sockets of minipigs. Bone. ISSN 8756-3282. 50, s. S115–S115. doi: 10.1016/j.bone.2012.02.354.
• Tiainen, Hanna; Wohlfahrt, Johan Caspar; Verket, Anders; Lyngstadaas, Ståle Petter & Haugen, Håvard Jostein (2012). Highly porous TiO2 scaffolds for bone repair.
• Haugen, Håvard Jostein; Monjo Cabrer, Marta; Lyngstadaas, Ståle Petter & Wohlfahrt, Johan Caspar (2012). Ultra-Porous Ceramic Titanium Dioxide Bone grafts Promote Bone Healing in Rabbit Peri-Implant Cortical Defect Model.
• Tiainen, Hanna; Wohlfahrt, Johan Caspar; Verket, Anders; Lyngstadaas, Ståle Petter & Haugen, Håvard Jostein (2012). Highly porous TiO2 scaffolds show excellent bone ingrowth in vivo.
• Tiainen, Hanna; Wohlfahrt, Johan Caspar; Verket, Anders; Lyngstadaas, Ståle Petter & Haugen, Håvard Jostein (2012). Bone formation in TiO2 bone scaffolds in extraction sockets of minipigs.
• Verket, Anders; Lyngstadaas, Ståle Petter; Rasmusson, Lars & Wohlfahrt, Johan Caspar (2012). Sinus Augmentation with Porous Titanium Granules- MicroCT and Histological Analysis.
• Verket, Anders; Lyngstadaas, Ståle Petter & Wohlfahrt, Johan Caspar (2011). Augmentation of the Maxillary Sinus Floor Using Porous Titanium Granules.
• Tiainen, Hanna; Wohlfahrt, Johan Caspar; Verket, Anders; Lyngstadaas, Ståle Petter & Haugen, Håvard Jostein (2011). Assessment of bone ingrowth into porous TiO2 bone scaffold.
• Tiainen, Hanna; Wohlfahrt, Johan Caspar; Verket, Anders; Ellingsen, Jan Eirik; Lyngstadaas, Ståle Petter & Haugen, Håvard Jostein (2011). Ultra-porous titanium dioxide scaffolds for bone repair.
• Verket, Anders; Lyngstadaas, Ståle Petter; Rønold, Hans Jacob & Wohlfahrt, Johan Caspar (2011). Implants inserted in Extraction Sockets Grafted with Porous Titanium Granules.
• Schneider, Sigurd; Henderson, Elisabet; Wohlfahrt, Johan Caspar; Taxt-Lamolle, Sebastien Francis Michel; Gustumhaugen, Eva & Petersen, Fernanda Cristina [Vis alle 9 forfattere av denne artikkelen] (2011). A nano chemical debridement solution shows high efficiency on contaminated titanium surface. European Cells and Materials. ISSN 1473-2262. 21.
• 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 (2009). Kirurgisk behandling av peri-implantat bein defekter- forsking ved Universitetet i Oslo.
• Wohlfahrt, Johan Caspar (2009). Regenerasjons behandling med porøse titan granula.
• 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.
• Wohlfahrt, Johan Caspar (2008). Surgical treatment of peri-implant osseous defects-Ongoing studies at the University of Oslo.
• Wohlfahrt, Johan Caspar (2008). Peri-Implantit.
• Wohlfahrt, Johan Caspar; Reseland, Janne Elin & Lyngstadaas, Ståle Petter (2007). Vevsregenerasjon med amelogenin-klinisk erfaring of fremtidsperspektiver. Odontologi. ISSN 0105-0141. s. 113–126.
• Samuelsson, Roy; Haanæs, Hans R & Wohlfahrt, Johan Caspar (2007). Når beinforholdene er inadekvate ved implantatbehandling. NDD-oppriktig dentalt. s. 16–19.
• Wohlfahrt, Johan Caspar (2007). Peri-Implantitt-Titangranulat for benregenerasjon.
• Wohlfahrt, Johan Caspar (2007). Peri-implantitis- Does it really exist?
• Wohlfahrt, Johan Caspar (2007). Contemporary Periodontology and Peri-implantology-Overview in brief and own research at the University of Oslo.
• Wohlfahrt, Johan Caspar (2012). On the use of titanium based materials as non-resorbable bone substitutes. Unipub forlag. ISSN 978-82.91757-77-3.

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