BACKGROUND Implant stability testing at various stages of implant therapy by means of resonance frequency analysis is extensively used. The overall measurement outcome is a function of the resulting stiffness of three entities: surrounding bone, bone-implant complex, and implant-Smartpeg complex. The influence of the latter on the overall measurement results is presently unknown. It can be inve...

Resonance frequency analysis (RFA) has become the main tool used to assess the osseointegration of dental implants. The objective of this study was to verify the relationship between the ISQ values with different prosthetic abutments and with the implant platform. The hypothesis was that ISQ values changes according to the abutment height. Twelve patients were included, whose contribution to th...

A series of alkyl-group-wrapped and halogen atom functionalized unsymmetrical squaraine dyes ( ISQ ) were designed synthesized. maximum DSSC device efficiency 7.80% was achieved for iodine funtionalized ISQ-I dye in Z-150 with CDCA.

Hostile attributions were examined in 150 incarcerated males to test the possibility that there are two pathways associated with hostile attributions: one related to psychopathy as assessed using the Psychopathy Checklist-Revised [PCL-R; Hare, 1991] and one related to depressogenic attributional style, as assessed using the Inferential Styles Questionnaire [ISQ; Rose et al., 1994]. Ten hypothet...

BACKGROUND The purposes of the present study were to compare implant stabilities of mandibular block bone graft and bovine bone graft and to evaluate influencing factors for implant stability in mandibular block bone (MBB) graft. METHODS This retrospective study investigated 1224 cases and 389 patients treated by one surgeon in the Department of Oral and Maxillofacial Surgery of Pusan Nationa...

BACKGROUND The aim of the present clinical study was to determine the local bone density in dental implant recipient sites using computerized tomography (CT) and to investigate the influence of local bone density on implant stability parameters and implant success. METHODS A total of 300 implants were placed in 111 patients between 2003 and 2005. The bone density in each implant recipient sit...

BACKGROUND This study evaluated the influence of implant site preparation depth on primary stability measured by insertion torque and resonance frequency analysis (RFA). MATERIAL AND METHODS Thirty-two implant sites were prepared in eight veal rib blocks. Sixteen sites were prepared using the conventional drilling sequence recommended by the manufacturer to a working depth of 10mm. The remain...

PURPOSE To monitor the development of stability of immediately loaded implants during early healing. MATERIALS AND METHODS A total of 90 interforaminally placed implants with an alkali-treated surface were considered. The stability of each implant was examined at placement and 1, 2, 3, 4, 5, 6, 8, and 10 weeks after the surgery using resonance frequency analysis (RFA) and damping capacity mea...

PURPOSE To evaluate the difference between the dental surgeon's perception of implant stability and the actual insertion torque and actual values obtained through resonance frequency analysis (RFA) during implant insertion surgery. MATERIALS AND METHODS One hundred fifty-two patients who needed one or more dental implants were selected. A total of 514 Xive implants was inserted. For all 514 i...

PURPOSE The possibility of immediate or early loading has become popular in implant dentistry. A prerequisite for the immediate or early loading of an implant prosthesis is the achievement of initial stability in the implant. Moreover, in response to clinicians' interest in verifying clinical stability to determine the optimal time point for functional loading, a non-invasive method to assess i...