MyMedR

Fulltext Increased Retention Of A Partial Denture Maxillary Obturator Using Dental Implant

Yunus, N., Rahman, Z.A.A.

Ann Dent, 2000;7(1):-.

MyJurnal

Tissue-integrated oral implants have opened-up a new perspective in oral rehabilitation of tumour patients who had undergone surgery. The present case demonstrated a simple approach to rehabilitate a patient who had subtotal maxillectomy using dental implant. The use of an implant in combination with a natural abutment tooth was shown to improve the retention and stability of the obturator. Magnetic attachment and telescopic restoration were the retainers of choice and they provided good aesthetic result.

Matched MeSH terms: Dental Abutments

The use of intraoral scanning and 3D printed casts to facilitate the fabrication and retrofitting of a new metal-ceramic crown supporting an existing removable partial denture

Patil PG, Lim HF

J Prosthet Dent, 2023 Jul;130(1):14-18.

PMID: 34774303 DOI: 10.1016/j.prosdent.2021.08.005

Fabricating a new crown to retrofit with an existing removable partial denture (RPD) is a complex procedure for both clinician and dental laboratory technician. The presented technique facilitates the fabrication and retrofitting of a metal-ceramic crown onto the principal abutment of the existing RPD by using 2-step intraoral scanning (with and without the RPD in place) and 2 different 3-dimensionally printed casts. The technique enables the dental laboratory technician to precisely reproduce the retentive areas, guiding planes, and rest seats on the retrofitted crown.

Matched MeSH terms: Dental Abutments

Comparison of the load at fracture of Turkom-Cera to Procera AllCeram and In-Ceram all-ceramic restorations

AL-Makramani BM, Razak AA, Abu-Hassan MI

J Prosthodont, 2009 Aug;18(6):484-8.

PMID: 19694015

PURPOSE: This study investigated the occlusal fracture resistance of Turkom-Cerafused alumina compared to Procera AllCeram and In-Ceram all-ceramic restorations.

MATERIALS AND METHODS: Sixmaster dies were duplicated from the prepared maxillary first premolar tooth using nonprecious metal alloy (Wiron 99). Ten copings of 0.6 mm thickness were fabricated from each type of ceramic, for a total of thirty copings. Two master dies were used for each group, and each of them was used to lute five copings. All groups were cemented with resin luting cement Panavia F according to manufacturer's instructions and received a static load of 5 kg during cementation. After 24 hours of distilled water storage at 37 degrees C, the copings were vertically compressed using a universal testing machine at a crosshead speed of 1 mm/min.

RESULTS: The results of the present study showed the following mean loads at fracture: Turkom-Cera (2184 +/- 164 N), In-Ceram (2042 +/- 200 N), and Procera AllCeram (1954 +/- 211 N). ANOVA and Scheffe's post hoc test showed that the mean load at fracture of Turkom-Cera was significantly different from Procera AllCeram (p < 0.05). Scheffe's post hoc test showed no significant difference between the mean load at fracture of Turkom-Cera and In-Ceram or between the mean load at fracture of In-Ceram and Procera AllCeram.

CONCLUSION: Because Turkom-Cera demonstrated equal to or higher loads at fracture than currently accepted all-ceramic materials, it would seem to be acceptable for fabrication of anterior and posterior ceramic crowns.

Matched MeSH terms: Dental Abutments*

Evaluation of the marginal fit of a zirconia ceramic computer-aided machined (CAM) crown system

Baig MR, Tan KB, Nicholls JI

J Prosthet Dent, 2010 Oct;104(4):216-27.

PMID: 20875526 DOI: 10.1016/S0022-3913(10)60128-X

The marginal fit of crowns is a concern for clinicians, and there is no conclusive evidence of any one margin configuration yielding better results than others in terms of marginal fit.

Matched MeSH terms: Dental Abutments

A Simple Technique for Accurate Transfer of Secondary Copings in a Tooth-Supported Telescopic Prosthesis

Shankargouda SB, Sidhu P, Kardalkar S, Desai PM

J Prosthodont, 2017 Feb;26(2):168-171.

PMID: 26479878 DOI: 10.1111/jopr.12385

Residual ridge resorption is a rapid, progressive, irreversible, and inevitable process of bone resorption. Long-standing teeth and implants have been shown to have maintained the bone around them without resorption. Thus, overdenture therapy has been proven to be beneficial in situations where few remaining teeth are present. In addition to the various advantages seen with tooth-supported telescopic overdentures, a few shortcomings can also be expected, including unseating of the overdenture, increased bulk of the prosthesis, secondary caries, etc. The precise transfer of the secondary telescopic copings to maintain the spatial relationship, without any micromovement, remains the most critical step in ensuring the success of the tooth-supported telescopic prosthesis. Thus, a simple and innovative technique of splinting the secondary copings was devised to prevent distortion and micromovement and maintain its spatial relationship.

Matched MeSH terms: Dental Abutments

Periodontal status of teeth in contact with denture in removable partial denture wearers

Yusof Z, Isa Z

J Oral Rehabil, 1994 Jan;21(1):77-86.

PMID: 8133391

The aims of the study were to determine the periodontal status of the teeth in contact with removable partial dentures (RPDs) and to compare them with other teeth in the opposing arch not related to any prosthesis. The periodontal status was also assessed in relation to the age of the dentures. Four hundred and twenty-seven patients treated with RPDs from 1981 to 1986 were recalled for examination. Prior to prosthetic treatment they were given periodontal treatment and fillings when required. Initially all were given oral hygiene instructions and motivation. They were reviewed regularly only on a short-term basis. Eighteen patients were suitable for the present study comprising of eight males and 10 females whose mean age was 41 years. The RPDs were in use from 1.5 to 8 years (mean 4.6 years). The following parameters were assessed: Plaque index (P1I), Gingival index (GI), loss of attachment (LA) and tooth mobility. The wearing of RPDs resulted in higher P1I, GI and LA compared to the controls and these differences were statistically significant. There was an increased frequency of higher P1I, GI and LA with the increase in denture age. Minor changes in tooth mobility were observed. It was concluded that the wearing of RPDs was detrimental to periodontal health in patients whose oral hygiene was less than adequate.

Matched MeSH terms: Dental Abutments

Effects of different implant-abutment connections on micromotion and stress distribution: prediction of microgap formation

Saidin S, Abdul Kadir MR, Sulaiman E, Abu Kasim NH

J Dent, 2012 Jun;40(6):467-74.

PMID: 22366313 DOI: 10.1016/j.jdent.2012.02.009

The aim of this study was to analyse micromotion and stress distribution at the connections of implants and four types of abutments: internal hexagonal, internal octagonal, internal conical and trilobe.

Matched MeSH terms: Dental Abutments

Dimensional profile of oral mucosa around combined tooth-implant-supported bridgework in macaque mandible

Siar CH, Toh CG, Ali TB, Seiz D, Ong ST

Clin Oral Implants Res, 2012 Apr;23(4):438-46.

PMID: 21435011 DOI: 10.1111/j.1600-0501.2010.02145.x

A stable oral mucosa is crucial for long-term survival and biofunctionality of implants. Most of this evidence is derived from clinical and animal studies based solely on implant-supported prosthesis. Much less is known about the dimensions and relationships of this soft tissue complex investing tooth-implant-supported bridgework (TISB). The aim here was to obtain experimental evidence on the dimensional characteristics of oral mucosa around TISB with two different abutment designs.

Matched MeSH terms: Dental Abutments

Peri-implant soft tissue integration of immediately loaded implants in the posterior macaque mandible: a histomorphometric study

Siar CH, Toh CG, Romanos G, Swaminathan D, Ong AH, Yaacob H, et al.

J. Periodontol., 2003 May;74(5):571-8.

PMID: 12816287

Today, one critical goal in implant placement is the achievement of optimal soft tissue integration. Reports thus far have demonstrated successful soft tissue preservation in delayed loaded implants placed in anterior jaws. The aim of this study was to histomorphometrically examine the soft tissues around immediately loaded implants placed in the macaque posterior mandible.

Matched MeSH terms: Dental Abutments

A new concept in denture design for patients with few remaining teeth: case reports

Ling BC

Quintessence Int, 1995 Dec;26(12):871-7.

PMID: 8596818

This article presents an alternative to the conventional swing-lock de sign of removable partial denture construction. It incorporates the principles of sectional dentures as well as the swing-lock concept and overcomes some of the limitations of conventional swing-lock dentures. I-bar struts and stainless steel keepers form part of the first section of the denture. The second part of the denture consists of the denture base with the artificial teeth and magnetic retention units. This system has been used successfully in a number of patients whose situations were suitable for the conventional swing-lock design.

Matched MeSH terms: Dental Abutments

The use of implants in the occlusal rehabilitation of a partially edentulous patient: a clinical report

Yunus N, Abdullah H, Hanapiah F

J Prosthet Dent, 2001 Jun;85(6):540-3.

PMID: 11404753

This article describes the occlusal rehabilitation of a partially edentulous patient who did not want a removable partial denture. Implants and extensive fixed restorations were used to restore posterior support and treat severely worn dentition, respectively. The treatment offered the patient a functional and esthetic result.

Matched MeSH terms: Dental Abutments

Edentulous arch treatment with a CAD/CAM screw-retained framework and cemented crowns: a clinical case report

Baig MR, Rajan G, Rajan M

J Oral Implantol, 2009;35(6):295-9.

PMID: 20017646 DOI: 10.1563/AAID-JOI-D-09-00012R1.1

This article describes the rehabilitation of a completely edentulous patient using a milled titanium implant framework and cemented crowns. This combined approach significantly offsets unsuitable implant position, alignment, or angulation, while ensuring the easy retrievability, repair, and maintenance of the prosthesis. Hence, the dual advantage of cemented-retained crowns reproducing appropriate esthetics and function, irrespective of where the screw access openings are located in the substructure, can be obtained, along with the splinting effect and management of soft and hard tissue deficits achievable with a screw-retained framework.

Matched MeSH terms: Dental Abutments

Full-arch metal-resin cement- and screw-retained provisional restoration for immediately loaded implants

Baig MR, Rajan G

J Oral Implantol, 2010;36(3):219-23.

PMID: 20553176 DOI: 10.1563/AAID-JOI-D-09-00048

Abstract This article describes the clinical and laboratory procedures involved in the fabrication of laboratory-processed, provisional, screw-retained, implant-supported maxillary and mandibular fixed complete dentures incorporating a cast metal reinforcement for immediate loading of implants. Precise fit is achieved by intraoral luting of the cast frame to milled abutments. Effective splinting of all implants is attained by the metal substructure and retrievability is provided by the screw-retention of the prosthesis.

Matched MeSH terms: Dental Abutments

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