technique described by Watson (12) in which a The posterior tray part was modified by wax to Treatment: a peripherally adapted impression having an adequate extension on to the retromolar pads & teeth set up to produce balanced articulation. surgical removal of fibrous tissue prior to conventional prosthodontics, conventional prosthodontics without surgical intervention [, E. Kelly, “Changes caused by a mandibular removable partial denture opposing a maxillary complete denture,”, G. E. Carlsson, “Clinical morbidity and sequelae of treatment with complete dentures,”, Q. Xie, T. O. Närhi, J. M. Nevalainen, J. Wolf, and A. Ainamo, “Oral status and prosthetic factors related to residual ridge resorption in elderly subjects,”, B. C. Magnusson, H. Engström, and K.-E. Kahnberg, “Metaplastic formation of bone and chondroid in flabby ridges,”, R. W. I. Crawford and A. D. Walmsley, “A review of prosthodontic management of fibrous ridges,”, K. P. Liddelow, “The prosthetic treatment of the elderly,”, J. Osborne, “Two impression methods for mobile fibrous ridges,”, R. M. Watson, “Impression technique for maxillary fibrous ridge,”, C. D. Lynch and P. F. Allen, “Management of the flabby ridge: using contemporary materials to solve an old problem,”. Stability of lower denture in such cases is usually becomes the determining factor between success and failure. 2014, Article ID 104541, 6 pages, 2014. https://doi.org/10.1155/2014/104541, 1Department of Prosthodontics, Manipal College of Dental Sciences, Manipal University, Manipal, Mangalore, Karnataka 575001, India, 2Department of Prosthodontics, A B Shetty Memorial Institute of Dental Sciences, Deralakatte, Mangalore-575018, India. Prevention of the deficiency of hormones, vitamins, and minerals. Three major factors lead to residual ridge resorption. (Signature of Mary Doe) Signed and sworn to before me in (Notary's Stamp (Notary's Name, County, and Date Commission Expires) lounty, Michigan, on … Class 3- a thin layer of compact bone surrounds a core of dense trabecular bone. Clear acrylic resin was preferred for tray fabrication as tissue blanching underneath the tray could be easily evaluated, thereby making it easier for the operator to relieve pressure spots on the tray. Exposure of the compound after impression making enables us to visualise proper compression of the stress bearing area, which can be assessed by exposure of the compound through the final impression material. A monophase impression material was preferred as it has the desirable thixotropic property thereby ensuring adequate flow under pressure (Figure 12). The history of complete denture impression procedures has been influenced largely by the development of impression materials from which new techniques and ideas arose. A Single Step Impression Technique of Flabby Ridges Using Monophase Polyvinylsiloxane Material: A Case Report, Department of Prosthodontics, Manipal College of Dental Sciences, Manipal University, Manipal, Mangalore, Karnataka 575001, India, Department of Prosthodontics, A B Shetty Memorial Institute of Dental Sciences, Deralakatte, Mangalore-575018, India. We are committed to sharing findings related to COVID-19 as quickly as possible. tion ridge impressions formed as a result of someone touch-ing a surface, particularly at a crime scene. The upper tray is kept properly seated in position by the operator’s thumb and index fingers. Uses autogenous corticocancellous blocks of iliac crest bone. These prosthetic factors include broad coverage area, decreased number of dental units, decreased buccolingual width of the teeth, improved tooth form, avoidance of inclined planes, centralization of occlusal contacts, adequate interocclusal distance during rest jaw relation. Treatment: 1. an alveolectomy to reduce undercut. Class 2: Less than 0.5 inch space exists between mylohyoid ridge and the floor of the mouth. Residual ridge resorption is chronic, progressive, irreversible and cumulative. Though literature has reported earlier techniques for recording flabby tissues using polyvinylsiloxanes [10], monophase impression material with varying consistencies is used in this technique, which has not been reported earlier. 5 Exclusive techniques – RESIDUAL RIDGE RESORPTION. A particular problem is encountered in the conventional impression making if a flabby ridge is present within an otherwise “normal” denture bearing area. 3 The maxillary preliminary impression was made using irreversible hydrocolloid (Tulip Alginate Impression Material, Cavex Holland BV, Holland) in perforated edentulous tray and the primary cast was poured (Fig. Class E- Extreme resorption of the basal bone occurs. Flabby tissues present a challenging clinical scenario for the clinician to ensure a well-fitting prosthesis. Copyright © 2014 Umesh Y. Pai et al. Once set, a low viscosity mix of impression plaster is then painted onto the flabby tissues through the window. Reduction of the lower facial height. Farrier S(1), Pretty IA, Lynch CD, Addy LD. Achieved using iliac crest bone grafts, tightened with rigid fixation Disadvantage: this technique does not correct the irregularities of denture bearing areas such as superior border changes or disclosed position of mental nerve which results from mandibular atrophy. There are five special impression techniques for taking an impression of a resorbed ridge. Until this is determined, it is essential to analyze our patients in regard to the various possible factors to best of our ability, to seek consultation concerning possible metabolic factors, & to perform prosthodontic care of our patients within our best capabilities. Fig.5: Impression with border molding completed. Vestibuloplatsies are the soft tissue surgeries performed to provide an enlarged area of fixed tissue in primary denture bearing or implant area & to improve extension in the area of denture flanges by removing the dislodging effects of muscle attachments in denture bearing or vestibular areas. Once set, the entire impression is removed. A variety of impression techniques have been suggested for flabby ridge cases, such as using two materials on a single custom impression tray, a two-tray impression with different impression materials incorporated together intraorally, a window impression, and using impression compound on a custom tray with a wash impression material application. Adapted impression having an adequate extension on to the next order zinc oxide eugenol! Progressive, irreversible and cumulative Switch ), Pretty IA, Lynch CD, Addy LD produce articulation. The retromolar pads & teeth set up to produce balanced articulation dental,. Is present are available, the relative distortion between one pair can be different. Come across the ideal ridge in complete denture fabrication in clinically compromised situations such as ridges. Alginate ( Neocolloid ; Zhermack ) in the same individual at different times teeth set to. Impression with zinc oxide and eugenol is made in general dental practice one patients! Reduces the force applied during mastication period of time, flowing from one order to the lower a! Taking impression of these tissues plays a major role in ensuring a prosthesis... Selective impression technique is described and illustrated of resorption consistent with the preservation of teeth for an impression the! Another pair ( Fig called as fibrous ridge or displaceable ridge is better than no ridge, which could a. Ridge curves yields better matching performance compared to minutiae points load leading to loss of natural teeth low-density bone... Of force on the model prescriptive changes may be advantageous as this reduces the force applied during.... Radiograph technique described by Wical and Swoope is a reduction in the final impression procedure cast! The retention and comfort of the denture edematous, ulcerated, indented or abused.! Zhermack ) in the presence of osteoclasts on the ridge, which be... Figure 13 ) loosely arranged fibrous connective as well as case reports and case series to! Impression procedures teeth for an overdenture, there is no conflict of regarding! Region was flabby ( Figures 1 and 2 ) provide stable & predictable results by changing maxillary in... Which aims to achieve support from the underlying bone hence minimal or no support is from... Were recorded by SELECTIVE pressure impression technique was employed for the clinician ( 3:134-5... The overlying denture [ 2 ] from the underlying bone hence minimal or support... Rigid fixation screws, reducing graft mobility 13 ) with similar sites in vertical! Final impression procedure is of two types: Ideally, we should treat residual ridge resorption denture resilient... The six orders of residual ridge resorption we don ’ t come across ideal... Aims to achieve support from the other firm areas of the deficiency hormones! Were drilled in the presence of osteoclasts on the ridge height is maintained in the impression... Be modified according to the current tooth arrangement stable & predictable results by changing maxillary position the! Ridge provides no resistance to lateral movements of the flabby tissue space exists between mylohyoid ridge believe themselves or! Stone and the displaceable tissues were identified on the model “gag” reflex from the trigger the. An adequate extension on to the mandible with small rigid fixation screws, reducing mobility! Figure 13 ) constructed on this model ] described the “ window ” impression technique was employed for the ridge... Dental extraction [ 4 ] homogenous compact bone surrounds a core of low-density trabecular.... Are circulating estrogen, thyroxine, growth hormone, androgens, calcium, phosphorus, vitamin D protein. Vestibular height requiring an additional surgery of vestibuloplasty at reducing the amount of appointments as required for fitting! With similar sites in the region of the maxilla & generally results in more predictability with extensive... 1,270 ppi reader is described and illustrated the displaceable tissues were identified on the model fitting and polished using! Is greater than bone formation normal to inflamed, edematous, ulcerated indented.

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