Homan Zandi

• Katle, Erik; Zandi, Homan; Pedersen, Deniz; Sunde, Pia Titterud; Torgersen, Gerald R. & Ørstavik, Dag Solmund (2024). Radiographic outcome of endodontic treatment and retreatment of teeth with apical periodontitis using two different root canal irrigants. A prospective cohort study. International Endodontic Journal. ISSN 0143-2885. 57(3), p. 297–304. doi: 10.1111/iej.14019.
• Agger, Anne Eriksson; Reseland, Janne Elin; Hjelkrem, Erik; Lian, Aina-Mari; Hals, Else Kristine Breivik & Zandi, Homan [Show all 7 contributors for this article] (2023). Are comorbidities associated with the cytokine/chemokine profile of persistent apical periodontitis? Clinical Oral Investigations. ISSN 1432-6981. 27, p. 5203–5215. doi: 10.1007/s00784-023-05139-3.
• Zandi, Homan; Petronijevic, Nikola; Mdala, Ibrahimu; Kristoffersen, Anne Karin; Enersen, Morten & Rocas, Isabela N. [Show all 8 contributors for this article] (2019). Outcome of endodontic retreatment Using 2 root canal irrigants and influence of infection on healing as determined by a molecular method: A Randomized Clinical Trial. Journal of Endodontics. ISSN 0099-2399. 45(9), p. 1089–1098.e5. doi: 10.1016/j.joen.2019.05.021.
• Zandi, Homan; Kristoffersen, Anne Karin; Ørstavik, Dag; Rocas, Isabela; Siqueira, Jose F. & Enersen, Morten (2018). Microbial Analysis of Endodontic Infections in Root-filled Teeth with Apical Periodontitis before and after Irrigation using Pyrosequencing. Journal of Endodontics. ISSN 0099-2399. 44(3), p. 372–378. doi: 10.1016/j.joen.2017.11.019.
• Rodrigues, Renata Costa Val; Zandi, Homan; Kristoffersen, Anne Karin; Enersen, Morten; Mdala, Ibrahimu & Ørstavik, Dag [Show all 8 contributors for this article] (2017). Influence of the apical preparation size and the irrigant type on bacterial reduction in root canal - treated teeth with apical periodontitis. Journal of Endodontics. ISSN 0099-2399. 43(7), p. 1058–1063. doi: 10.1016/j.joen.2017.02.004.
• Zandi, Homan; Rodrigues, Renata C.V.; Kristoffersen, Anne Karin; Enersen, Morten; Mdala, Ibrahimu & Ørstavik, Dag [Show all 8 contributors for this article] (2016). Antibacterial Effectiveness of 2 Root Canal Irrigants in Root-filled Teeth with Infection: A Randomized Clinical Trial. Journal of Endodontics. ISSN 0099-2399. 42(9), p. 1307–1313. doi: 10.1016/j.joen.2016.06.006.
• Firoozkoohi, Mohammad Javad; Zandi, Homan & Olsen, Ingar (1997). Comparison of lipopolysaccharides from Bacteroides, Porphyromonas, Prevotella, Campylobacter and Wolinella by trcine-SDS-PAGE. Endodontics & Dental Traumatology. ISSN 0109-2502. 13, p. 13–18.

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• Zandi, Homan; Rodrigues, Renata C. V.; Kristoffersen, Anne Karin; Ørstavik, Dag; Siqueira, Jose F. & Rocas, Isabela [Show all 7 contributors for this article] (2014). Clinical effectiveness of two antimicrobial irrigants in endodontically treated teeth. Poster presentation.
• Zandi, Homan; Rodrigues, Renata C. V.; Kristoffersen, Anne Karin; Ørstavik, Dag; Siqueira, Jose F. & Rocas, Isabela [Show all 7 contributors for this article] (2014). Clinical effectiveness of two antimicrobial irrigants in endodontically treated teeth. Oral presentation. Show summary

  Clinical Effectiveness of Two Antimicrobial Irrigants in Endodontically Treated Teeth Homan Zandi, DDS, Renata C. V. Rodrigues, DDS, Anne-Karin Kristoffersen, PhD, Dag Ørstavik, DDS, PhD, José F. Siqueira Jr, DDS, PhD, Isabela Rôças, DDS, PhD, Morten Enersen, DDS, PhD Abstract Background: Endodontic treatment of root-filled teeth with post-treatment disease is especially challenging. The outcome of endodontic treatment is significantly influenced by the presence of bacteria in the root canals at the time of filling. Sodium hypochlorite (NaOCl) is widely used as a root canal irrigant in different concentrations because of its pronounced antimicrobial activity and the ability of dissolving necrotic tissue and organic matter. Chlorhexidine gluconate (CHX) is an effective substitute for NaOCl due to its broad-spectrum antimicrobial efficacy against bacteria and its high dentin substantivity. It is less toxic against vital tissues than NaOCl but lacks tissue dissolving property. No culture-independent molecular study has compared the antimicrobial effectiveness of 1% NaOCl and 2% CHX in root-filled teeth with apical periodontitis (AP). Objectives: The aim of the present study was to compare the antibacterial properties of 1% NaOCl and 2% CHX in endodontically treated teeth with AP. Methods: Sixty-eight root-filled teeth with AP were randomly distributed in two irrigant groups. Bacterial samples were taken at baseline (S1), after chemomechanical preparation using either 1% NaOCl or 2% CHX as irrigant (S2), and after intracanal medication with calcium hydroxide at the second visit (S3). The bacterial samples were analyzed by 16S rRNA gene-based quantitative polymerase chain reaction (qPCR) for total bacteria, Enterococcus faecalis and Streptococcus spp.. Results: Preliminary results indicated bacterial DNA in all the samples at S1. E. faecalis was seldom found, but streptococci were frequent. The amount of bacterial DNA significantly declined following treatment in both groups (S2 and S3) (p<0.001). There was no significant difference between NaOCl and CHX groups in reducing total bacterial and streptococcal counts (p>0.05). Conclusion: Findings indicate that endodontic retreatment was equally effective in reducing the amount of bacteria in both irrigation groups. Keywords: Endodontics. Root canal irrigants.

• Zandi, Homan; Firoozkoohi, Mohammad Javad; Brondz, Ilia & Olsen, Ingar (1996). Quantitarive yield of lipopolysaccharide with different extraction methods. Journal of Dental Research. ISSN 0022-0345. 75.
• Firoozkoohi, Mohammad Javad; Zandi, Homan & Olsen, Ingar (1996). Sammenlikning av lipopolysakkarid fra Bacteroides, Porphyromonas, Prevotella, Campylobacter og Wolinella ved hjelp av tricin-SDS-PAGE.

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