J Adv Prosthodont.  2009 Mar;1(1):31-36. 10.4047/jap.2009.1.1.31.

A comparison of the implant stability among various implant systems: clinical study

• Kim JM
• Kim SJ
• Han I
• Shin SW
• Ryu JJ

• KMID: 2176338
• DOI: http://doi.org/10.4047/jap.2009.1.1.31

Abstract

PURPOSE
To determine the change in stability of single-stage, three different design of implant systems in humans utilizing resonance frequency analysis for early healing period (24 weeks), without loading. MATERIAL AND METHODS: Twenty-five patients were included into this study. A total of 45 implants, three different design of implant systems (group A,C,R) were placed in the posterior maxilla or mandible. The specific transducer for each implant system was used. ISQ (implant stability quotient) reading were obtained for each implant at the time of surgery, 3, 6, 8, 10, 12, 24 weeks postoperatively. Data were analyzed for different implant type, bone type, healing time, anatomical locations. RESULTS: For each implant system, a two-factor mixed-model ANOVA demonstrated that a significant effect on ISQ values (group A = 0.0022, C = 0.017, R = 0.0018). For each implant system, in a two-factor mixed model ANOVA, and two-sample t-test, the main effect of jaw position (P > .005) on ISQ values were not significant. CONCLUSIONS: All the implant groups A, C and R, the change patterns of ISQ over time differed by bone type. Implant stability increased greatly between week 0 and week six and showed slow increase between week six and six months (plateau effect).

Keyword

Osseointegration; Implant stability; Magnetic resonance frequency analysis; Bone quality type

MeSH Terms

Humans
Jaw
Mandible
Maxilla
Osseointegration
Transducers

Figure

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  Fig. 1 Measurements were made at 2 - 3 mm away with buccolingual and mesiodistal direction.

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  Fig. 2 Changing pattern of implant Stability according to bone Type (Group A).

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  Fig. 3 % Changing pattern from baseline ISQ value (Group A).

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  Fig. 4 Changing pattern of implant Stability according to bone Type (Group C).

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  Fig. 5 % Changing pattern from baseline ISQ value (Group C).

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  Fig. 6 Changing pattern of implant Stability according to bone Type (Group R).

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  Fig. 7 % Changing pattern from baseline ISQ value (Group R).

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  Fig. 8 Changing pattern of implant Stability according to bone type (All Groups).

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  Fig. 9 Changing pattern of implant Stability according to location (Group A).

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  Fig. 10 Changing pattern of implant Stability according to location (Group C).

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  Fig. 11 Changing pattern of implant Stability according to location (Group R).

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  Fig. 12 Changing pattern of implant Stability according to location (All Groups).

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