International Journal of Dental Sciences and Research, 2014, Vol. 2, No. 2, 32-35 Available online at http://pubs.sciepub.com/ijdsr/2/2/2 © Science and Education Publishing DOI:10.12691/ijdsr-2-2-2 The Advantages of Partial Dentures Made of Cast Framework Cr-Co toward those Made of Resin Based Dentures Gjergj BOÇARI 1,* , Neada HYSENAJ 1 , Alesio BOÇARI 2 1 Univeristy Dental Clinic, Tirana, Albania 2 Private Dental Clinic “Nobel”, Tirana, Albania *Corresponding author: gjbocari@yahoo.com Received March 26, 2014; Revised April 12, 2014; Accepted April 13, 2014 Abstract Many investigations have shown that the cooperation of the denture design between the dental clinic and laboratory is often inadequate, with many dentists leaving it to the technician to decide the denture design. The aim of this study was to compare the stability of the removable partial dentures, made of cast framework base of Cr- Co toward those from acrylic resin-base. Through this study, we show the importance of a good planning and design of RDP, the evaluation of direct retentions, especially those of clasps and precise attachments for their impact on the longevity of the supporting teeth and tissues in different clinical cases, classified by Kennedy. The removable partial dentures evaluated in the study are either with or without a cast framework. In this study, are taken into observation 65 prostheses from 53 patients (28 maxillary and 37 mandibular) aged 38-70 years old. We have analyzed the type of clasps used and evaluated mobility scale and periodontal and clinical conditions of the abutment teeth in each case. After clinical examination we concluded that the abutment teeth where correct choice of clasp types were applied, had a mobility scale within physiological parameters and overall better clinical conditions compared to the abutment teeth were different type of clasps were used. Keywords: direct retainers, denture design, Kennedy classification Cite This Article: Gjergj BOÇARI, Neada HYSENAJ, and Alesio BOÇARI, “The Advantages of Partial Dentures Made of Cast Framework Cr-Co toward those Made of Resin Based Dentures.” International Journal of Dental Sciences and Research, vol. 2, no. 2 (2014): 32-35. doi: 10.12691/ijdsr-2-2-2. 1. Introduction T Nowadays, the scientific research is more focused on the fixed prosthetics and mainly on dental implants. Implant supported dentures are becoming popular for prosthetic restorations in partially edentulous patients. But however, removable partial denture (RPD) is still the primary treatment option from the patients’ view because an implant-supported dentures are relatively expensive from a financial point of view and require a surgical procedure that not in every case can be done, and a longer treatment time compared to treatment with removable partial denture. As we know, a partial denture is supported by the abutment teeth and residual ridges which have different support characteristics while being under pressure. When a force is applied at the base of the saddle it generates rotational movements of the RPD and it can exert harmful forces on the supporting teeth and residual ridges. In order to minimize the non physiological forces and preserve the health of the tissues many authors have been focused on biomechanical principles of removable partial dentures design and particularly on the distribution of the excessive forces to the abutment teeth, but also the support, stability, and retention of the denture RPD [4,8]. But there are many other authors who emphasize the importance of the RPD design principle that takes in consideration plaque control especially for caries prevention and periodontal health. These principles make up the hygienic design principles and are characterized by simplicity and openness of the gingival margins [9]. In general textbooks, these two principles are known as the fundamentals of RPD design [2,4,8,9,10]. Another factor to take in consideration is the type of material used in constructing the RPD. In general practice we encounter: 1. Resin-based removable partial dentures 2. Cast-framework removable partial dentures. In our study we evaluated these principles in different types of partial dentures and grouped by the Kennedy classification of the defects. 2. Material and Methods 2.1. Subjects In this study, are taken into observation 53 patients (34 female and 19 male) with a total number of 65 prostheses divided in 28 maxillary and 37 mandibular dentures. The age group of the patients is between 38-70 years of age.