OBJECTIVETo study the color changes on brightness and hue in dental ceramic prothesis materials.

METHODSThe different color mark of VINTAGE series was sintered on 15 pieces Ni-Cr alloy denture materials. The sample group and control group was given the sintering of color blending with equivalent volume. The order of color mark was of A1 and A2, A2 and A3, A3 and A4, B1 and B2, B2 and B3, B3 and B4 in sample group, and A1, A2, A3, A3.5, A4, B1, B2, B3 and B4 orderly in control group. The chromatic analysis on samples of VITA had been taken through applying PR 650 spectrum detector and adopted the statistic software of Photo Research and SPSS 12.0 for analysis.

RESULTSThe statistical difference (P<0.05) of L*a*b* value was found in the different color mark of the same color serials. A non-linearity relation had been found in the chromatic parameters a*b*. It means the change of color was visible.

CONCLUSIONSet A has a bigger grading change of brightness than Set B. The change of red-green is obviously in Set A, as well as yellow-blue in Set B.

OBJECTIVETo study the effect existed in the course of adopting different thickness and chromatics of various opaques so that a good methods can be provided for clinical care in prosthodontics.

METHODSA model of using the thin plastic paper to control the ceramic thickness was applied in this test. The data of chromaticity was measured by TC-PIIG auto color difference meter and its results was processed by computer.

RESULTSThe value of brightness had an uptrend increase with augment of opaques thickness. Metal base color was opaqued and the basic hue was set. A lower and unstable value, besides a relative stable Y, was measured with the uncompleted opaquing. A stability of hue had been gradually concentrated within a certain range accompanying with the increase of opaquing ceramic thickness. A concentrated hue in the second thickness was found in CARAT ceramic which had high ability of opaque and had a stable hue of ceramic in comparison with other opaques. Among those changes, CARAT's brightness showed a minimal change; a gradual stability of chromatics was presented and was limited with-in a certain range though the augment of opaques.

CONCLUSIONThe metal color in base could be completely opaqued while opaques thickness reaches a certain range. CARAT is the materials of minimal thickness and has relatively strong capacity for opaques.

OBJECTIVEThis report is to introduce the processing method of the separate movable partial denture and get an initial clinical evaluation.

METHODSThe separate movable partial denture was developed as a kind of special design in utilizing double base plate to separately get support for bearing stress and get the stability of retention.

RESULTSThe clinical application indicated that the separate movable partial denture has effective function of common movable partial denture as well as has a good function of natural human teeth protection, especially for those patients with I -II tooth loose.

CONCLUSIONThe separate movable partial denture is the ideal choice of treatment for those patients who are suffering I - II teeth loose. This type of movable partial denture was considered effectively protect natural human teeth and extend the lifetime of natural tooth long-term and further observation in clinical care on this type of denture is needed.

OBJECTIVETo research the color space of the standard color board, guide the clinic work of color match, and establish an foundation for deeper researching.

METHODSThrough taking analysis of reflecting spectrum and spectral tristimulus, each parameter of the color on standard board was found out. The color difference between border upon colors on board was worked out through matching the color parameters. The number of color space between each border upon color on standard color board, divided by deltaE = 1.5, was found.

RESULTSThe number of color space between each border upon color was 3-6. The color space was bigger in group B, but smaller in group D. The color space was bigger in high lightness area, but smaller in low lightness area.

CONCLUSIONSome color space has been found between standard color borders of VINTAGE and UNIBOND. Color of natural teeth is unable to be completely included into standard color border, especially in clinical care.

OBJECTIVECercon all-ceramic system was applied clinically for the first time to make all-ceramic crowns and bridges for the patients. The objective of this study was to evaluate the short-term follow-up results of this new system from both technical and clinical aspects.

METHODS15 units of Cercon all-ceramic crowns and bridges were fabricated and applied to 5 patients, all the cases were followed at 1, 3, 6 and 12 months' periods after cementation of the restorations.

RESULTSCercon all-ceramic system demonstrate natural and esthetical appearance. No fracture, broken and color change were found.

CONCLUSIONThe reliability of all-ceramic crowns and bridges made from Cercon system was greatly improved due to the strengthening effects of the zirconia copings and substructures, and the indication of this system can be extended to long span posterior bridges. In addition, the better esthetics compared to PFM technique makes it a comparatively ideal all-ceramic system for crowns and bridges.

Objective:To conduct a scoping review of research on the self-advocacy of adult cancer patients to identify their self-advocacy needs, behaviors, strengths and weaknesses, so as to provide guidance for future research in this field.Methods:Using the scoping review guidelines of Joanna Briggs Institute in Australia as a methodological framework, relevant literatures were searched in PubMed, Web of Science, Cochrane Library, Embase, Science Direct, CINAHL, Scopus, China National Knowledge Infrastructure, Wanfang, VIP and China Biology Medicine disc. The search period was from establishment of the databases to December 2023, and the results were summarized and analyzed.Results:A total of 14 articles were included, and self-advocacy needs included six types of needs, such as symptom management, communication, interpersonal support, disease information, decision-making and emotional management. Self-advocacy included four aspects, including seeking information, self-decision-making, strengthening contact with the outside world and effective communication.Conclusions:Adult cancer patients have diverse types of self-advocacy needs and certain self-advocacy behaviors. Future research should pay attention to self-advocacy needs assessment, develop corresponding tools, focus on self-advocacy behaviors, leverage the advantages of self-advocacy and explore strategies to achieve effective self-advocacy support.

Objective:To conduct a scoping review of the application of mobile health applications (MHA) in the care of patients with colorectal cancer, summarizing the development process, the functions achieved, as well as the evaluation metrics, to provide references for MHA practice and related research.Methods:Following the scoping review framework, a comprehensive search was conducted across both domestic and international databases, including the China Biomedical Literature Database, Wanfang Database, China National Knowledge Infrastructure (CNKI), VIP Database, Cochrane Library, PubMed, Embase, CINAHL, Web of Science, and Scopus. The search period was from the database inception to February, 2024.Results:A total of 16 studies were included. The development of MHA involved multiple methods including literature reviews, qualitative interviews, consultations with multidisciplinary teams, and guidance from theoretical models. The functions of MHA include health education, peer support, guided feedback, monitoring, and reminder features. Evaluation metrics for MHA comprise usability, adherence, and effectiveness.Conclusions:MHA has demonstrated positive effects in enhancing patients' knowledge and alleviating symptoms such as fatigue and vomiting in colorectal cancer patients. However, it is still in its early stages, and further high-quality studies are needed to scientifically develop MHA that meets patients' needs.