Acta Scientific Dental Sciences (ISSN: 2581-4893)

Case Report Volume 4 Issue 1

Partially-Veneered Zirconia Crowns for Maxillary Midline Diastema Closure

Sarra Nasri1, Rim Kallala1, Yosra Gassara1, Zohra Nouira2, Belhassan Harzallah2, Mounir Cherif2 and Dalenda Hadyaoui2*

1Resident at dental clinic of Monastir, Tunisia
2Professor at dental clinic of Monastir, Tunisia

*Copdf/ASDSuthor: Dalenda Hadyaoui, Professor at dental clinic of Monastir, Tunisia.

Received: December 13, 2019; Published: December 31, 2019



Background: Maxillary midline diastema is a common esthetic problem that may affect patient’s self-esteem. Many treatment modalities are available for diastema closure from surgery, orthodontics to composite build up, veneers and crowns. The choice depends on the extent of the diastema and the malposition’s associated.

Case Report: A 28-year-old male patient presented with diastema in his upper front teeth associated with important malposition. A preoperative study performed on diagnostic casts led to the choice of partially veneered full coverage zirconia crowns to ensure achieving adequate teeth proportions and gingival levels.

Conclusion: The presence of maxillary midline diastema is a very common esthetic problem. Among a wide array of treatment options, full coverage zirconia crowns are a reliable treatment when remaining enamel is unsufficient to indicate laminate veneers. Partially veneered zirconia crowns ensure high mechanical properties biocompatibility and color stability overtime.

Keywords: Partially-Veneered; Maxillary Midline



  1. Ban S. “Reliability and properties of core materials for all-ceramic dental restorations”. Japanese Dental Science Review 44.1 (2008): 3-21.
  2. Guess PC., et al. “Shear bond strengths between different zirconia cores and veneering ceramics and their susceptibility to thermocycling”. Dental materials: official publication of the Academy of Dental Materials 24.11 (2008):1556-1567.
  3. Manicone PF., et al. “Biological considerations on the use of zirconia for dental devices”. International Journal of Immunopathology and Pharmacology 20.1 (2007): 9-12.
  4. Sailer I., et al. “All-ceramic or metal-ceramic tooth-supported fixed dental prostheses (FDPs)? A systematic review of the survival and complication rates. Part I: Single crowns (SCs)”. Dental materials: official publication of the Academy of Dental Materials 31.6 (2015): 603-623.
  5. Al-Amleh B., et al. “Clinical Trials in Zirconia: A Systematic Review”. Journal of Oral Rehabilitation 37 (2010): 641-652.
  6. Camposilvan E., et al. “Enhanced reliability of yttria-stabilized zirconia for dental applications”. Acta Biomaterialia 17 (2015): 36-46.
  7. Miura S., et al. Clinical Chipping of Zirconia All-Ceramic Restorations (2015): 317-23.
  8. Schmitter M., et al. “Chipping behaviour of all-ceramic crowns with zirconia framework and CAD/CAM manufactured veneer”. Journal of Dentistry 40.2 (2012): 154-162.
  9. Raigrodski AJ., et al. “The efficacy of posterior three-unit zirconium-oxide-based ceramic fixed partial dental prostheses: a prospective clinical pilot study”. Journal of Prosthetic Dentistry 96.4 (2006): 237-244.
  10. El-Ghany O and Sherief A. “Zirconia based ceramics, some clinical and biological aspects: Review”. Future Dental Journal (2016): 2.
  11. Koutayas SO., et al. “Zirconia in dentistry: part 2. Evidence-based clinical breakthrough”. The European Journal of Esthetic Dentistry: Official Journal of the European Academy of Esthetic Dentistry 4.4 (2009): 348-380.
  12. Nishigori A., et al. “Influence of zirconia surface treatment on veneering porcelain shear bond strength after cyclic loading”. Journal of Prosthetic Dentistry 112.6 (2014):1392-1398.
  13. Miura S., et al. “Clinical Chipping of Zirconia All-Ceramic Restorations”. Interface Oral Health Science (2015). 
  14. Rekow D and Thompson VP. “Engineering long term clinical success of advanced ceramic prostheses”. Journal of Materials Science Materials in Medicine 18.1 (2007): 47-56.
  15. Parrini S., et al. “Laypeople's perceptions of frontal smile esthetics: A systematic review”. American Journal of Orthodontics and Dentofacial Orthopedics: Official Publication of the American Association of Orthodontists, its Constituent Societies, and the American Board of Orthodontics 150.5 (2016):740-750.
  16. LN S., et al. “Midline Diastema: Treatment Options”. Journal of Evolution of Medical and Dental Sciences 1 (2012): 1267-1272.
  17. Hwang SK., et al. “Diastema closure using direct bonding restorations combined with orthodontic treatment: a case report”. Restorative Dentistry and Endodontics 37.3 (2012):165-169.
  18. Petridis HP., et al. “Survival of ceramic veneers made of different materials after a minimum follow-up period of five years: a systematic review and meta-analysis”. The European Journal of Esthetic Dentistry: Official Journal of the European Academy of Esthetic Dentistry 7.2 (2012):138-152.
  19. Layton DM and Clarke M. “A systematic review and meta-analysis of the survival of non-feldspathic porcelain veneers over 5 and 10 years”. The International Journal of Prosthodontics 26.2 (2013):111-124.
  20. Morimoto S., et al. “Survival Rate of Resin and Ceramic Inlays, Onlays, and Overlays: A Systematic Review and Meta-analysis”. Journal of Dental Research 95.9 (2016): 985-994.
  21. Morimoto S., et al. “Main Clinical Outcomes of Feldspathic Porcelain and Glass-Ceramic Laminate Veneers: A Systematic Review and Meta-Analysis of Survival and Complication Rates”. The International Journal of Prosthodontics 29.1 (2016): 38-49.
  22. Gurel G., et al. “Influence of enamel preservation on failure rates of porcelain laminate veneers”. The International Journal of Periodontics and Restorative Dentistry 33.1 (2013): 31-39.
  23. Umehara K., et al. “Study on the Enamel Thickness of the Anterior Teeth of the Japanese Preparation for the Laminate Veneer Technique”. Nihon Hotetsu Shika Gakkai Zasshi 34.4 (1990):757-765.
  24. Fischer J., et al. “Flexural strength of veneering ceramics for zirconia”. Journal of Dentistry 36.5 (2008): 316-321.
  25. Tan JP., et al. “The use of slow heating and slow cooling regimens to strengthen porcelain fused to zirconia”. Journal of Prosthetic Dentistry 107.3 (2012):163-169.
  26. Swain MV. “Unstable cracking (chipping) of veneering porcelain on all-ceramic dental crowns and fixed partial dentures”. Acta Biomaterialia 5.5 (2009):1668-1677.
  27. Sulaiman T., et al. “Fracture rate of 188695 lithium disilicate and zirconia ceramic restorations after up to 7.5 years of clinical service: A dental laboratory survey”. The Journal of Prosthetic Dentistry (2019).
  28. Donovan T., et al. “An evidence-based evaluation of contemporary dental ceramics”. Dental Update 45 (2018): 541-546.
  29. Mundhe K., et al. “Clinical study to evaluate the wear of natural enamel antagonist to zirconia and metal ceramic crowns”. Journal of Prosthetic Dentistry 114.3 (2015): 358-363.
  30. Kohorst P., et al. “Low-temperature degradation of different zirconia ceramics for dental applications”. Acta Biomaterialia 8.3 (2012): 1213-1220.
  31. Harsha MS., et al. “The Effect of Cavity Design on Fracture Resistance and Failure Pattern in Monolithic Zirconia Partial Coverage Restorations - An In vitro Study”. Journal of Clinical and Diagnostic Research 11.5 (2017): ZC45-ZC8.
  32. Omori S., et al. “Effect of thickness of zirconia-ceramic crown frameworks on strength and fracture pattern”. Dental Materials Journal 32 (2013): 189-194.


Citation: Dalenda Hadyaoui., et al. “Partially-Veneered Zirconia Crowns for Maxillary Midline Diastema Closure".Acta Scientific Dental Sciences 4.1 (2020): 124-131.


Acceptance rate30%
Acceptance to publication20-30 days
Impact Factor1.278

Indexed In

News and Events

  • Certification for Review
    Acta Scientific certifies the Editors/reviewers for their review done towards the assigned articles of the respective journals.
  • Submission Timeline for Upcoming Issue
    The last date for submission of articles for regular Issues is May 30, 2024.
  • Publication Certificate
    Authors will be issued a "Publication Certificate" as a mark of appreciation for publishing their work.
  • Best Article of the Issue
    The Editors will elect one Best Article after each issue release. The authors of this article will be provided with a certificate of "Best Article of the Issue"
  • Welcoming Article Submission
    Acta Scientific delightfully welcomes active researchers for submission of articles towards the upcoming issue of respective journals.

Contact US