A prospective clinical trial to assess the optical efficacy of pink neck implants and pink abutments on soft tissue esthetics

J Esthet Restor Dent. 2017 Nov 12;29(6):409-415. doi: 10.1111/jerd.12309. Epub 2017 Jun 5.


Objective: The purpose of this prospective, randomized, controlled, multicenter clinical study was to analyze the optical effects of an anodized pink colored implant shoulder/abutment system in the peri-implant mucosa of immediately placed dental implants.

Materials and method: Forty subjects with a restoratively hopeless tooth in the maxillary esthetic zone, were recruited and randomized to receive either a pink-neck implant, or a conventional gray implant. All patients received an immediate implant and immediate provisional and two identical CAD/CAM titanium abutments with different surface colors: pink and gray, and one zirconia all-ceramic crown. The color of the peri-implant mucosa was measured using a dental spectrophotometer and analyzed using CIELAB color system.

Results: The overall color difference between the peri-implant mucosa with a pink abutment and a gray abutment was ΔE = 4.22. Patients with gray implants presented a color change of ΔE = 3.86-4.17 with this abutment change, while patients with pink implants had a color change of ΔE = 3.84-4.69. The peri-implant mucosa with a pink abutment was significantly more red when compared with a gray abutment (P ≤ .01).

Conclusions: When a pink abutment was used, there is a significant color change of the peri-implant mucosa that is above the detectable color threshold.

Clinical significance: Esthetic outcomes are important for the success of implant treatment of maxillary anterior implants. The phenomenon of the gray color of a dental implant and abutment shining through the peri-implant mucosa has been documented in the literature. The objective of this study was to assess the optical effect of an anodized pink-neck implant and a pink abutment on the color of peri-implant mucosa. This study demonstrates that using pink-neck implant and a pink abutment would contribute positively to the overall esthetic outcome for an anterior implant.

Keywords: dental materials; esthetic dentistry; implants.

Publication types

  • Multicenter Study
  • Randomized Controlled Trial

MeSH terms

  • Adult
  • Aged
  • Computer-Aided Design
  • Crowns
  • Dental Implant-Abutment Design*
  • Dental Implantation, Endosseous / methods*
  • Dental Implants, Single-Tooth*
  • Esthetics, Dental*
  • Female
  • Gingiva / anatomy & histology*
  • Humans
  • Male
  • Maxilla
  • Middle Aged
  • Prospective Studies
  • Prosthesis Coloring*
  • Spectrophotometry