* Monolithic Lithium Disilicate Full-Contour Crowns Bonded on CAD/CAM Zirconia Complete-Arch Implant Bridges With 3 to 5 Years of Follow-Up.
- This study was carried on to assess the clinical performance of a novel restorative concept consisting in single monolithic lithium disilicate full-contour crowns bonded on computer-aided design/computer-aided manufacturing (CAD/CAM) zirconia complete-arch implant bridges, to overcome the drawbacks related to the chipping of porcelain fused to zirconia restorations. Sixteen patients received 18 implant-supported hybrid screw-cement-retained complete-arch restorations, consisting of single monolithic lithium disilicate full-contour crowns bonded on CAD/CAM zirconia frameworks. The restorations were supported by 4-8 implants. All patients were followed up for at least 3 years on function (range 36 to 60 months, mean 49.3 months). Clinical controls were scheduled every 4 months. The outcomes were implant and prosthetic survival and success rates, any complications, patient satisfaction, and soft tissue parameters. No dropouts occurred. The overall implant and prosthesis survival rates were 100%. One of 18 restorations (1 of 236 dental units) showed a chip-off fracture of the veneering ceramic that was polished intraorally without any additional treatment, scoring a cumulative prosthetic success rate of 100%, according to the California Dental Association index. All patients were functionally and esthetically highly satisfied with their restorations. Successful soft tissue parameters were found around all implants. Single monolithic lithium disilicate full-contour crowns, bonded on CAD/CAM screw-retained complete-arch zirconia frameworks, showed favorable preliminary outcomes with medium-term follow-up. However, randomized controlled studies of this technique are required for further conclusive recommendations.
Overview of noun study
The noun study has 10 senses (first 8 from tagged texts)
1. (90) survey, study -- (a detailed critical inspection)
2. (17) study, work -- (applying the mind to learning and understanding a subject (especially by
reading); "mastering a second language requires a lot of work"; "no schools offer graduate study in
interior design")
3. (6) report, study, written report -- (a written document describing the findings of some
individual or group; "this accords with the recent study by Hill and Dale")
4. (6) study -- (a state of deep mental absorption; "she is in a deep study")
5. (6) study -- (a room used for reading and writing and studying; "he knocked lightly on the closed
door of the study")
6. (3) discipline, subject, subject area, subject field, field, field of study, study, bailiwick --
(a branch of knowledge; "in what discipline is his doctorate?"; "teachers should be well trained in
their subject"; "anthropology is the study of human beings")
7. (2) sketch, study -- (preliminary drawing for later elaboration; "he made several studies before
starting to paint")
8. (1) cogitation, study -- (attentive consideration and meditation; "after much cogitation he
rejected the offer")
9. study -- (someone who memorizes quickly and easily (as the lines for a part in a play); "he is a
quick study")
10. study -- (a composition intended to develop one aspect of the performer's technique; "a study in
spiccato bowing")
Overview of verb study
The verb study has 6 senses (first 6 from tagged texts)
1. (73) analyze, analyse, study, examine, canvass, canvas -- (consider in detail and subject to an
analysis in order to discover essential features or meaning; "analyze a sonnet by Shakespeare";
"analyze the evidence in a criminal trial"; "analyze your real motives")
2. (17) study -- (be a student; follow a course of study; be enrolled at an institute of learning)
3. (15) study, consider -- (give careful consideration to; "consider the possibility of moving")
4. (13) learn, study, read, take -- (be a student of a certain subject; "She is reading for the bar
exam")
5. (5) study, hit the books -- (learn by reading books; "He is studying geology in his room"; "I
have an exam next week; I must hit the books now")
6. (2) study, meditate, contemplate -- (think intently and at length, as for spiritual purposes; "He
is meditating in his study")
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