(n.) The surface formed by cutting away the arris, or angle, formed by two faces of a piece of timber, stone, etc.
(v. t.) To cut a furrow in, as in a column; to groove; to channel; to flute.
(v. t.) To make a chamfer on.
Example Sentences:
(1) Somehow, everything we produced had a decidedly 1970s feel, a look formed by both the number of chamfered blocks in the set, and the inescapable desire to make everything symmetrical as you stack floor upon floor.
(2) Although the dentin bonding agents tend to accumulate on chamfers, thereby increasing their thickness to 200-300 microns, the method looks promising as a simple way to protect the pulp from the consequences of microleakage.
(3) A chamfer with a bevel, a shoulder with a bevel, or chamfer preparations are not suited to this technique.
(4) The crown margin designs taught most often were the flat shoulder, the 45-degree bevel shoulder, and the chamfer.
(5) This study evaluated chamfered and beveled preparations for Class IV restorations of lesions with microfilled and macrofilled composite resin.
(6) Serial radiographic analyses demonstrate progressive narrowing of all of the chamfered cylinder design and less in hemispherical design with screw fixation.
(7) This study tested three different types of crown margin preparations--a chamfer, a shoulder, and a shoulder plus a bevel to determine whether or not the margin preparation could affect microleakage.
(8) Facial and lingual chamfer margins were placed in enamel, mesial and distal in dentin and cementum, and castings were made in Rexillium III alloy and were then cemented with a standardized technique.
(9) This study indicated that the resin bonded cast fixed partial denture with the lingual chamfer margin and mesial rest was the design to be chosen.
(10) Group I consisted of 43 restorations placed without any tooth preparation; Group II consisted of 72 restorations placed using a chamfer preparation.
(11) The margin designs were rounded-shoulder, rounded-shoulder with a bevel, and a chamfer.
(12) On the acetabular side, both the cementless hemispherical with screw-type adjuvant fixation, or the chamfered cylinder designs, used primarily with the UCLA porous surface replacements, but also with stem-type devices, appear to achieve best short-term results, while the entire variety of screw rings are disappointing.
(13) With 76 different types of Lego bricks scattered across the table, from flat baseplates to chamfered wedge-shaped blocks and lots of tiny pieces with nipples and sockets sprouting in all directions, the challenge was to know where to begin.
(14) These included the use of thin metal copings (0.1 and 0.2 mm), a chamfer preparation, an alloy with relatively poor creep resistance, and a large thermal contraction mismatch between the alloy and porcelain layers.
(15) The accepted marginal design indicated by manufacturers for ceramic jacket crowns is the 90 degrees full shoulder with a rounded gingival-axial line angle or a deep chamfer.
(16) The weakest restorations were observed when a 0.8-mm chamfer finish line (66.8 kg) was used.
(17) Seventy extracted intact, non-carious maxillary central incisors, of approximately the same size, were collected and randomly divided into the following seven groups: 90 degrees butt joint (control)), 1 and 2 mm 45 degrees bevels, 1 and 2 mm 60 degrees bevels, and 1 and 2 mm chamfer margins.
(18) There was no significant difference in marginal fit between the shoulder and the chamfer configuration in every luting material examined.
(19) The coping and crown dimensions were based on a prepared maxillary central incisor with a facial shoulder and a lingual chamfer.
(20) The experiments were conducted in the following manner: Ten pieces of full cast crowns were constructed by a conventional procedure with 12% Au-Ag-Pd alloy and each test-piece was cemented alternately by zinc phosphate cement on a master die (stainless steel) with a chamfer margin.
Groove
Definition:
(n.) A furrow, channel, or long hollow, such as may be formed by cutting, molding, grinding, the wearing force of flowing water, or constant travel; a depressed way; a worn path; a rut.
(n.) Hence: The habitual course of life, work, or affairs; fixed routine.
(n.) A shaft or excavation.
(v. t.) To cut a groove or channel in; to form into channels or grooves; to furrow.
Example Sentences:
(1) The ligands bind at discrete sites in the minor groove of DNA, and analysis on DNA sequencing gels show pronounced protection at the ligand binding sites, as well as more generalized protection.
(2) Recent reports have indicated the usefulness of nuclear grooves (clefts or notches) as an additional criterion for the diagnosis of papillary thyroid carcinoma in fine needle aspirates; most of these studies were carried out on alcohol-fixed material stained with the Papanicolaou stain or with hematoxylin and eosin, which yield good nuclear details.
(3) Intermolecular contacts occur in both oligomers in the minor groove: in the B form through twisted guanine-guanine hydrogen bonding, and in the Z form through base-base stacking and the water network.
(4) The nogalose and aminoglucose sugars lie in the minor and major grooves, respectively, of the distorted B-DNA double helix.
(5) The AFB1 moiety is face-stacked in the major groove with its long axis approximately perpendicular to the helix axis.
(6) These results strongly indicate that metallobleomycin binds in the minor groove of B-DNA and that the 2-amino group of guanine adjacent to the 5' side of the cleaved pyrimidine base is one key element of the specific 5' G-C or G-T recognition by the bleomycin-metal complex.
(7) As a basis for the discussion a possible structure for the DNA complex of the phenylated neutral red is considered in which the extra phenyl ring at N-5 of the phenazinium system, protrudes into the large groove of the DNA helix while the tricyclic part of the ligand is inserted between the DNA base-pairs.
(8) A high intensity of the reactions was observed in certain cells of the neural groove in 24-hours' embryos and in the neural tube of 48-hours' embryos.
(9) Recent STM studies of calf thymus DNA and poly(rA).poly(rU) have shown that the helical pitch and periodic alternation of major and minor grooves can be visualized and reliably measured.
(10) In the absence of boxes or grooves, pins markedly enhanced both retention and resistance.
(11) Therefore in artificial knee replacement a lateral tilt of the patella sliding groove should not be propagated as 'physiological'.
(12) Many antitumor drugs, and many carcinogens, act by binding within the minor groove of double-helical DNA, interfering with both replication and transcription.
(13) This instrument, a modification of a corneal trephine, provides a neat, smooth groove of adjustable depth.
(14) and the fluid ejected from the ejaculatory groove region (about 0.2 ml.).
(15) 3) The significance of minor groove Mtase-DNA interactions to specificity is confirmed.
(16) (v) The bis-benzimidazole drug Hoechst-33258, which binds in the minor groove of B-DNA, exhibits very little fluorescence in the presence of the ps hairpins but a normal, enhanced emission with the aps oligonucleotides.
(17) We have studied the time-resolved and the steady-state fluorescence of the DNA groove binders 4',6-diamidino-2-phenylindole (DAPI) and Hoechst 33258 with the double stranded DNAs poly(dA-dU) and poly(dI-dC) and their halogenated analogs, poly(dA-I5dU) and poly(dI-Br5dC).
(18) The complexation-induced chemical shifts and NOE cross peaks in the NOESY map of the 1:1 complex of lexitropsin (1) and d-[CGCAATTGCG]2 reveal that the thiazole ring of the lexitropsin (1) intercalates between dA4.A5 bases and the rest of the ligand resides in the minor groove of the AT rich core of decamer, thus occupying the 5'-AATT sequence on the DNA.
(19) All cases had true hypertelorism and a median nasal groove with absence of the nasal tip.
(20) Distamycin, Hoechst 33258, and DAPI were used as agents capable of AT-specific binding in the minor groove of DNA while producing no profound long-range distortion of DNA structure.