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D. Qujeq , S. Vasegh Ghezei Ghaleh , A  zamanian ,
Volume 14, Issue 1 (9 2001)

Sialoprotein is a phosphorylated skeletal glycoprotein. The function of sialoprotein is still not fully understood. It is possible that this component participate in cell differentiation and the conversion of unmineralized matrix into mineralized structures. The purpose of the present study was to determine the serum sialoprotein concentration in-patient and normal subjects to investigate the relationship between serum sialoprotein and dentin, enamel structural differentiation. The study group consisted of 50 patients, 32 males and 18 females, aged 17-54 (with an average of 32.5 years). The control group consisted of 50 normal volunteers, 26 males and 24 females, age 22-51 (with an average of 39.60 years).The laboratory data of this group were used as a reference. Human blood was obtained from control and patient group. The blood sample was centrifuged at 3000* g for 20 min, the supernatant was discarded.Then each sample was centrifuged for 20 min at 10000 g applied to a sepharose column and eluted with 4 moll Guanidine - HCL at 50 moll tris, pH 7.4 at a flow rate of 0.5 ml/min. The fractions obtained by chromatograply was monitored by electrophoresis. Our results showed that sialoprotein control increased in patients serum (18.45+/-3.2I micro gr/L) compared to normal subjects (11.37+/-2.45 micro gr/L).
Siavash Valizadeh, Omid Fatahi Valilai, Alireza Valizadeh, Mahmoud Houshmand, Zahra Vasegh,
Volume 31, Issue 2 (9-2018)

Background and Aims: In recent years, the dentistry workflow has developed considerably. By the introduction of computers and their various applications, the effectiveness and efficiency of treatment has increased enormously. Considering engineering concepts in the workflow, it is necessary for participants to assess different steps and data transferring between various software and hardware devices. This research investigated the interaction between dentists, laboratories and production centers through the required steps for accomplishing treatment by different applications of software and digital hardware devices.
Materials and Methods: Review in this article was based on searching Google scholar database considering key words: digital dentistry, workflow, computer aided design and manufacturing, dental CAD/CAM. This search was limited to the English articles published after the year 2000.
Conclusion: It is necessary in dentistry to use digital technologies to improve the efficiency of treatments. Thus, the participants in this field must have appropriate knowledge to choose and apply these tools. Moreover, the participant should help providers of digital solutions for better development of software packages and related hardwares.a

Siavash Valizadeh, Omid Fatahi Valilai, Mahmoud Houshmand, Zahra Vasegh, Alireza Valizadeh,
Volume 31, Issue 4 (1-2019)

Background and Aims: One of the important fields of dentistry is surgery for dental implants. In this field, dentistry has developed considerably in recent years amongst other fields of medicine from the perspective of digital device and software application. Surgical guides help dental surgeon for more precise, confident, easier and shorter surgery. Process of producing these tools are full digital and to somehow complex due to the application of many technical devices, software and protocols. To achieve efficiency, all participants in the workflow must be aware of all steps and data requirements for production of guides. This paper investigates the production process of surgical guide comprehensively, and also, encompass all the steps in process with details.
Materials and Methods: This review article was based on searching Google scholar and PupMed databases considering key words: Surgical Guide, Guided surgery, digital dentistry, dental CAD/CAM, Additive manufacturing. More than 90% of the references were in English language and published after year 2010.
Conclusion: Today dentistry uses many digital solutions for dairy workflow and most of these solutions are developed by engineers in various fields of knowledge. Thus, this information is essential for dentists, surgeon, clinician and laboratory technician, etc. for better collaboration and participation. Amongst, advances in surgery of dental implant have been highly significant and patients benefit from better treatment and less inconvenience. In addition, dentists do surgery more precise and easier because of considering all conditions before of surgery. Thus, it is substantial inform of all steps of production process.

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