Henning Staedt1, Eva Mally2, Herbert Scheller2, Stefan Wentaschek2, Peer Wolfgang Kämmerer3, Adrian Kasaj4, Alessandro Devigus5, Karl Martin Lehmann6. 1. Department of Prosthodontics and Materials Science, University Medical Centre Rostock, Strempelstraße 13, 18057, Rostock, Germany. 2. Department of Prosthodontics and Materials Science, University Medical Centre Mainz, Augustusplatz 2, 55131, Mainz, Germany. 3. Department of Oral and Maxillofacial Surgery, Plastic Surgery, University Medical Centre Mainz, Mainz, Germany. 4. Department of Conservative Dentistry and Periodontology, University Medical Centre Mainz, Mainz, Germany. 5. , Bülach, Switzerland. 6. Department of Prosthodontics and Materials Science, University Medical Centre Mainz, Augustusplatz 2, 55131, Mainz, Germany. drkarllehmann@gmail.com.
Abstract
INTRODUCTION: This study evaluated the reproducibility of electronic color determination system evaluations of the marginal gingiva, which could be important for adhesive cervical fillings or prosthetic restorations that imitate the gingiva. MATERIAL AND METHODS: In 50 subjects, the L*, a*, and b* color coordinates were evaluated five times at a point in the marginal area of a central incisor using different electronic color determination systems: (SP) Shadepilot, (ES) Easyshade, (CE) Crystaleye, and (SV) X-Rite. The mean color difference (ΔE) and its standard deviation between the five measurements from each participant were calculated separately for each device. Further ICC for interdevice reliability was determined. RESULTS: The L*, a*, and b* color coordinates and ΔE values differed significantly among the systems (p < 0.001). Within each patient and measurement system, ΔE ranged from 1.4 to 3.2 (SD 1.1-2.5), L* from 2.6 to 5.7 (SD 2.6-5.7), a* from 11.9 to 21.3 (SD 3.6-3.9), and b* from 15.1 to 28.9 (SD 1.7-4.3). Interdevice reliability ranged between 0.675 and 0.807. CONCLUSIONS: Color determination of the marginal gingiva using the electronic tooth color determination systems tested herein showed limited reproducibility. The results obtained with the different measurement systems differed enormously. CLINICAL RELEVANCE: These results show that the electronic color measurement devices tested allow no high reproducible determination of color coordinates of the marginal gingiva.
INTRODUCTION: This study evaluated the reproducibility of electronic color determination system evaluations of the marginal gingiva, which could be important for adhesive cervical fillings or prosthetic restorations that imitate the gingiva. MATERIAL AND METHODS: In 50 subjects, the L*, a*, and b* color coordinates were evaluated five times at a point in the marginal area of a central incisor using different electronic color determination systems: (SP) Shadepilot, (ES) Easyshade, (CE) Crystaleye, and (SV) X-Rite. The mean color difference (ΔE) and its standard deviation between the five measurements from each participant were calculated separately for each device. Further ICC for interdevice reliability was determined. RESULTS: The L*, a*, and b* color coordinates and ΔE values differed significantly among the systems (p < 0.001). Within each patient and measurement system, ΔE ranged from 1.4 to 3.2 (SD 1.1-2.5), L* from 2.6 to 5.7 (SD 2.6-5.7), a* from 11.9 to 21.3 (SD 3.6-3.9), and b* from 15.1 to 28.9 (SD 1.7-4.3). Interdevice reliability ranged between 0.675 and 0.807. CONCLUSIONS: Color determination of the marginal gingiva using the electronic tooth color determination systems tested herein showed limited reproducibility. The results obtained with the different measurement systems differed enormously. CLINICAL RELEVANCE: These results show that the electronic color measurement devices tested allow no high reproducible determination of color coordinates of the marginal gingiva.
Entities:
Keywords:
Class V; Color; Easyshade; Electronic color measurement; Esthetic dentistry; Gingiva; Periodontal; Soft tissue
Authors: Karl Martin Lehmann; Alessandro Devigus; Christopher Igiel; Stefan Wentaschek; Mehdi Sattari Azar; Herbert Scheller Journal: Eur J Esthet Dent Date: 2011
Authors: John R Gallo; John O Burgess; Alan H Ripps; Richard S Walker; Edward J Ireland; Donald E Mercante; Jessica M Davidson Journal: Oper Dent Date: 2005 May-Jun Impact factor: 2.440
Authors: Karl Martin Lehmann; Alessandro Devigus; Christopher Igiel; Michael Weyhrauch; Irene Schmidtmann; Stefan Wentaschek; Herbert Scheller Journal: Eur J Esthet Dent Date: 2012