Catia software

Three different types of implant–abutment connections used in commercially well-known implant systems were selected. The features of these connections are as follows:

Sample A: Tri-channel internal connection (Nobel Biocare, Goteborg, Sweden) [Figure 1]

Sample B: Internal conical-hex Morse Taper (ADIN, Northern Israel)[Figure 2]

Sample C: Internal octa-Morse taper method (Osstem, Korea) [Figure 3].

Length of 10 mm and diameter of 4.3 mm were selected.
The above-mentioned implants were scanned using a high-quality scanner. Series of scans were taken from the inner surfaces of each type of implant. All the above data were used to produce computerized model by CATIA software (computer-aided three-dimensional [3D] interactive application, Dassault Systèmes, Vélizy-Villacoublay, France). Number of elements and nodes were tabularized Table 1.

Geometric model of mandibular molar replacing with implant-supported prosthesis was generated in computer-aided three-dimensional interactive application (CATIA) software by Dassault Systemes, France. Bone section of 26 mm height and 12.5 mm width including cortical and trabecular bone was considered. Bone quality of posterior mandible (D2) was generated. Bone quality D2 is considered according to Misch classification for bone quality. Finite element model of D2 bone was generated by incorporating properties such as modulus of elasticity and Poisson’s ratio of cortical and trabecular bone. Similarly, 3D geometric model of a cobalt-chromium crown over implant assembly was created by incorporating properties of cobalt-chromium alloy. The dimensions of implant are given in Table 1 [19 ], and morphology and dimensions of crown are in accordance with standard textbook [20 ].
A processing software ANSYS, by Ansys, Inc. Canonsburg, (Pennsylvania, USA) version 17.0 was used for creating 3D mesh model of section of mandible with implant assembly using 1,50,350 nodes and 90,40,220 elements. An implant with prosthetic components as well as cortical and cancellous bone around the implant was modeled as in Figure 1.

In Computer Aided Three-Dimensional Interactive Application (CATIA) software, Dassault Systèmes, France, a geometric model of replacing the mandibular molar with an implant-supported prosthesis was created. A bone section with cortical and trabacular bone measuring 5 mm in diameter, and 11.5 mm in length was taken into consideration. The posterior mandible's (D2) bone quality was produced. Table 1[17 ] provides implant dimensions, and the morphology and crown dimensions are consistent with those found in most textbooks.[18 ]
Using 1,50,350 nodes and 90,40,220 elements, a 3D mesh model of a section of the mandible with implant assembly was created using the processing software ANSYS version 18.0, Ansys, Inc, Canonsburg, Pennsylvania, United States. Figure 1 depicts a model of an implant with prosthetic elements and the cortical and cancellous bone surrounding the implant.