Oral Biologyhousing. Several different methods have been suggested to correct misangulated implant placements during the prosthetic phases of treatment. The most common method is the use of angulated or custom abutments, which allows positional correction. (Allows the correction of 40º of divergence) However, limitation still exists to achieve the ideal parallelism.The use of overdentures with meso-structures (ODMS) is one option for solving this problem. The meso-structure is fabricated by precision milling of casted frameworks [5][6][7][8][9][10]. Paralleled Locator attachments can be casted, screwed or laser-welded on the mesostructure in a more favorable position. In 2012, Kim et al. reported that implant overdenture using a locator bar system fabricated with the drill and tapping technique provided stability, support, and retention to dentures for fully edentulous patients [11]. However, considering the wide range of different intraoral locations of milled bars, there is a lack of information regarding the evaluation of meso-
Avens Publishing Group
Inviting Innovations
Avens Publishing Group
Inviting InnovationsKeywords: Overdenture; Meso-structure; Implant angulation;
Stability
AbstractLack of retention and stability is one of the most challenging problems in wearing conventional dentures due to the atrophy of the alveolar ridge. In addition, pain or discomfort can be frequently present with a poor load-bearing capacity of the tissues. The treatment of choice, among several options for edentulous patients is the implant-supported overdenture prosthesis. Locators have been the most popular method used as an unsplinted anchorage system. Poorly angled or unfavorably positioned implants cause lack of parallelism, resulting in compromised esthetics, phonetics, and function. The use of overdentures with meso-structures and paralleled Locator attachments is one option for solving this problem. The purpose of this report was to present a case series, and document a step-by-step procedure to fabricate overdentures with meso-structures and to discuss the indications, contraindications, advantages and disadvantages of meso-structures.