Accuracy of the healing abutment and impression coping combined system on implant impression.
10.4047/jkap.2015.53.2.105
- Author:
Kyoung Bae JEON
1
;
Du Hyeong LEE
;
Jung Han KIM
;
Jun Ho HWANG
;
Hyun We PARK
;
Kyu Bok LEE
Author Information
1. Department of Prosthodontics, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea. kblee@knu.ac.kr
- Publication Type:Original Article
- Keywords:
Implant;
Healing abutment;
Impression taking;
Accuracy
- MeSH:
Dental Implants;
Humans;
Molar;
Seoul;
Tooth
- From:The Journal of Korean Academy of Prosthodontics
2015;53(2):105-110
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The purpose of this study was to evaluate the 3 dimensional accuracy of impression taking on the newly developed healing abutment and impression coping combined system comparing conventional pick-up type impression. MATERIALS AND METHODS: For 10 patients who had a single missing tooth on molar area, dental implants (SuperLine; Dentium, Seoul, Korea) were placed and healing abutment (MyHealing; Raphabio Co., Seoul, Korea) abutments were connected. After 3 months, transfer type impression with MyHealing and pick-up type impression with impression coping were performed twice in the same patients, and master models were fabricated. Customized prosthetic abutments (Myplant; Raphabio Co., Seoul, Korea) were milled and connected to the master casts. Through a dental scanner (Scanner S600; Zirkonzahn, South Tyrol, Italy), the master casts were converted into virtual casts. The length and angulation differences between casts were measured using 3 dimentional analysis program (Geomagic Qualify 12; Geomagic, Morrisville, NC, USA). Statistical significance was calculated using Kruskal Wallis test and Mann-Whitney U test (alpha=.05). RESULTS: The length differences between the two systems were 0.032 mm in sagittal plane, and 0.029 in coronal plane, and 0.023 mm in horizontal plane. The angulation differences were 0.755#x00B0; in sagittal plane, and 1.275#x00B0; in coronal plane, and 0.420#x00B0; in horizontal plane. CONCLUSION: The accuracy of newly developed healing abutment system is similar to that of conventional pick-up impression. The new system can reduces chair time by not using separate impression coping.
