damon q bracket placement guide. The metal Damon Q is a major step forward in low-friction, passive self. damon q bracket placement guide

 
 The metal Damon Q is a major step forward in low-friction, passive selfdamon q bracket placement guide ” While there are examples of Damon Q brackets in the current sample with 90° corners, the great majority have large rounded internal line angles

Instructions for Using Damon™ Optimal-Force Copper Ni-Ti ® with Preloaded Stops Archwire Stops • Cut the Copper Ni-Ti archwire to proper length. In the interval time of 3–6 months of orthodontic treatment, evidence was very low in favor of SLBs in terms of PI (WMD 0. The Damon Ultima System is designed. Comparison of . 019 x . Compartir:. Introducing Damon™ Q2, featuring 2x rotation control for optimal precision, predictability, and efficiency. * Current Damon Q drop-in hooks (242-0114) are compatible with Damon Q2 brackets. Damon 2. Enhanced Tie-Wing Design. E-mail address: drshoaibkhan. 025″ SS and TMA wires, respectively, at an interbracket distance of 12 mm. PHASE 4: FINISHING . 72 Nmm and 7. Bracket positioning for Smile Arc Protection (SAP) is an innovation that blends the art of contemporary esthetics with the science behind three-dimensional control of tooth position, making superior esthetic results attainable and more predictable during orthodontic treatment. 012, . Siamese Bracket9: introduced by Dr. drop-in hooks * and optional permanent hooks designed for durability with Ormco’s elastics and auxiliaries. After virtual bracket placement, the reference model was converted to a digital model with the brackets blocked out and exported as a standard triangle lan-guage file using a CAD-CAM program (Appliance. Studies show that indirect bonding improves the patient experience by reducing treatment time (1) and chair time as well as lessening physical and mental stress, since the clinical procedure is simpler than. 72 Nmm and 7. Representing over 20 years of innovation and inspiration from orthodontists around the world, the new Damon™ Q2 is the 8th generation bracket in the world-renowned Damon™ System— a proven combination of passive self-ligating brackets, light force archwire sequencing, and recommended treatment protocols used to successfully finish millions of cases. 2. Bracket placement was standardized by the insertion of an U-shaped stainless steel full-size 0. The Post-treatment diagnostic casts were analyzed using the PAR ruler and the scoring was given. Typically, the A-lastics are changed. Interactivity Guide Time 302. Passive SL Technology with SpinTek™ Slide Clinically proven. Each tooth was polished, rinsed with water, dried, etched with 37% phosphoric acid for 30 s, and rinsed thoroughly with water for a minimum of 5 s per tooth with a forceful air/water spray. Damon braces may be more hygienic than traditional braces. 0225 inches), with the “highest measured manufacturing tolerance” among the three tested and “nearly 90-degree corners. 4. Damon’s self-ligating brackets have been designed to overcome the drawbacks of conventional bracket system and are often considered as the pinnacle of bracket technology. 1. Download scientific diagram | Standard bracket placement of damon bracket. The F1000 showed significantly higher opening forces than the other brackets for both prescriptions tested. BRACKET PLACEMENT GUIDE. Dwight Damon advises placement of the bracket within the. Gire. Jual Bracket Damon Terbaik - Harga Murah November 2023 & Cicil 0%. 8 – 14. Self-Ligating Instrument must be cleaned, bagged individually or bagged/wrapped in a tray setup, and then sterilized. The metal Damon Q amounts to an important improvement in low-friction technology with passive self-ligation, helping to achieve more than just straight teeth. 0005) and more Damon 2 brackets debonded during the study (P, . 8 – 14. FIX® in the indirect bonding because the bracket placement on a stone model using this positioner is easier and more accurate. 071 mm. 016x0. designed for durability with Ormco’s elastics and auxiliaries. Each clinician received several sets of maxillary central, lateral and canine Damon Clear brackets in the standard prescription, two SpinTek™ opening/closing in-Damon Quantum. Damon Torque and Bracket Placement Guide PDF Dentistry Branches Dentistry. 45 Nmm, while Smart Clip brackets generated 22. drop-in hooks * and optional permanent hooks designed for durability with Ormco’s elastics and auxiliaries. Kit Damon Q U/I Torque Alto cantidad. Effect of Bracket Position on Wire Plane If a full enamel display with 1-1. 025. To close Damon brackets, the archwire must be inserted into the slot so that it is not obstructing the slide. Archwire materials and geometry, bracket material and design, archwire ligation method, and bracket placement are. When it opens new doors to practice efficiency, clinical flexibility, patient comfort and aesthetics. 26 – 70. 31 Nmm with 0. 69. Passive self-ligating systems use brackets that do not require elastic o-rings to hold the wires in place. , 1332 South Lone Hill Ave. . A more clear description for right mesiodistal position of brackets was given by Andrew that brackets should ideally be placed at the mid developmental ridge of the teeth. The evolution of the Damon bracket has been a game-changer over the last 10 years. 018″ × 0. 2. both the mandibular molars are pla ced at th e same heig ht, which is 0. Eighty eight eligible patients were identified and recruited at the participating clinical center, subject to the inclusion and exclusion criteria. 5588 mm (0. 025 SS and TMA wires, respectively, at an interbracket distance of. And from those norms, the MBT System bracket placement process offers an efficient, standardized means for achieving intra-arch accuracy along the vertical axis. 25 Nmm and 7. 5mm of gin -The Damon Ultima System is the first true full expression orthodontic system designed for faster and more precise finishing. (OrthoIBT; NextDent, Seosterberg, Netherland) was used to fabricate the trays. PHASE 4: FINISHING . A full description of the Damon philosophy and treatment techniques are given by Damon. Quickly tied in place in the same manner as a standard ligature wire. txt) or read online for free. The most significant technologic advancement is the self-ligating bracket. 100% clear bracket body and slide. Max Lateral = 4. 2009. 1996. Methods Using the equations developed in part 1 (eU1(BOP) = 90° − BT(U1) − TCA(U1) + α1 − α2 and eL1(BOP) = 90° − BT(L1) −. Max Lateral = 4. This is because they attract bacteria, which can cause them to appear “furry” after only a month or so. Arming doctors with 2x rotation control helps provide them with the toolset needed to treat all cases with the utmost confidence and bracket reliability. 2008. 02333” ± 0. Damon 2. Damon. In this study three types of 0. , 3M Unitek; Ovation C, 0. The elastic bands in traditional braces can become dirty easily. 31 Nmm with 0. and . Consumables. 3 & 4 Std. Comparison of . This is when he created the Pitts 21 passive self-ligating orthodontic brackets with smaller than ever square slots, with a depth of 0. 02295” ± 0. Supplied with high-precision positioning gauges and dual slots for auxiliary wires for new treatment applications. Phase 1 Treatment with. Click here for order information. 21 It has been demonstrated that clinically effective torque can be achieved with archwire torsion of approximately 15. • Bonding Sequence: From left second molar to first premolar; from. Bracket Placement Beethoven Orthodontic Clinic currently uses two types of brackets, Damon Q® and Damon Clear® (ceramic brackets of anterior teeth and maxillary premolars). , 3M Unitek; Ovation C, 0. 016”×0. Max Central = 5 6 mm from incisal edge. DQ2’s rhomboid-shaped pad and vertical scribe line were designed to guide desired bracket placement. 019 × 0. Damon ™ Q. ” While there are examples of Damon Q brackets in the current sample with 90° corners, the great majority have large rounded internal line angles. 022 mm while the Speed bracket deformed 0. Damon Clear bracket and began December 2008. Moreover, considering inexperienced students in the beginning of their orthodontic clinical training, the accurate direct bracket placement procedure can be even more challenging,Damon Q brackets were bonded with banding in the first and second molars. Allows for convenient placement of drop-in hooks. Malang Original Dental Supply Malang. Several. Subscribe to Our Notifications. Start tooth movement, leveling, begin arch form development, prepare for next archwire. The indirect bonding appointment will be completed by the assigned resident, at which time the. 72 Nmm and 7. 5 mm gingival to th e M-D co ntac t li ne ( Figure ). 5 5. Less chairside assistance • Harradine 2001, SL brackets reduce placement time of an In a meta-analysis by Chen 2010 reported mean time savings of 20 seconds per Mohammed Almuzian, University of Glasgow, 2013 Page 9. The ceramic brackets used makes Damon Clear Braces virtually invisible. DAMON CLEAR BRACKET DIMENSIONS tooth mesial - distal 1 buccal - lingual (incl. Treatment results were assessed with American board of orthodontics objective grading system (ABO-OGS). 125:645-6, 2004. Convenient use of . nine bracket positioning in relation to the incisors. Damon Q brackets generated the highest torquing moment of 25. The SLX Bracket System Beats Damon ® Q with 10 Essential Enhancements Features Damon Q SLX Performance Rationale/Objectives 1. Recontour teeth for esthetics and bracket fit. 572 mm (0. 45 Nmm, while Smart Clip brackets generated 22. 022 × 0. Damon 3MX. WARNING: This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer, and ethylene oxide, which is known to the State of California to cause birth defects or other reproductive harm. Subscribe to Our Notifications. 2008. Materials and Method: Three-dimensional models of Damon Q (Ormco, Glendora, Calif) and Mini 2000 (Ormco, Glendora, Calif) brackets (upper 3 to 3) were modeled using micro computed tomography. Click here to learn more about Damon's value for your practice. The slide incorporates Innovative SpinTek™ technology with chamfered design to facilitate archwire engagement. 391) Urutkan: Paling Sesuai. Damon ™ Clear. Compartir:. 1: Customized group: Pre-treatment extra. It is completely reengineered to virtually eliminate play for precise control of rotation, angulation and torque. 1-Damon SL brackets . drop-in hooks * and optional permanent hooks designed for durability with Ormco’s elastics and auxiliaries. Vertical scribe line, new drop-in hook, and modified prescription — DQ2 features a rhomboid-shaped pad and new vertical scribe line to guide desired bracket placement. -6 90 -11 70 3-3 standard t. The main advantage of the Damon System is, when you think of traditional braces, wire slides into a metal bracket that was held on only by a strong rubber band. The enamel was. 019 × 0. They also create nooks and crannies within your mouth where food can easily become trapped. By not using the elastic o-rings, it is said that the wires freely slide through the slots without friction. t orquew i play, dv ng x s. The slide incorporates Innovative SpinTek™ technology with chamfered design to facilitate archwire engagement. +12˚ +5˚ 0˚ 491-8861 491-8860 Central Alto +22˚ +5˚ 0˚ 491-8867 491-8866 Lateral Bajo -5˚ +9˚ 0˚ 491-8873 491-8872Bracket Placement Card and Self-Ligating Instrument are used only on orthodontic bonding bracket tray setup. Damon Q bracket is a self-ligating bracket. * Current Damon Q drop-in hooks (242-0114) are compatible with Damon Q2 brackets. Join for free. Content/methods: Two tables based on the authors’ clinical experience, one for the maxilla and the other for the mandible. The built-in placement jig makes the Bite. Page 22. When placing the brackets, care must be given to placing the mesial and distal outline of the pad in the long axis of the tooth rather than aligning the body of the bracket. Brainerd Swain in 1949, to overcome the problem of root parallelism in extraction cases. 25 Nmm and 7. The bonding protocols are developed based on Damon, Pitts1, Roberts, and Chang's2-4 methods. • Color-coded positioning gauges on brackets (3-3) denote torque values. 019 X . Offering a complete and interchangeable system of metal and aesthetic appliances, Damon™ Q2 functions seamlessly with: Damon™ Q. The DQ2 is the newest addition to the Damon™ System and this passive self-ligating bracket, when compared to the Damon Q, features two times the rotational control and. Damon. 0275” at the height of its radius (Figure 3), which provides simultaneous. Therefore, the table is named Guide Position Smile-Arc (GPS-A). scribe line help guide bracket placement. 00. Dwight Damon. Warnings. 1-7. Self-Ligating bracket design. The metal Damon Q is a major step forward in low-friction, passive self-ligation technology that delivers far more than straight teeth. These tables are designed to guide bracket placement. The positioning gauge, rhomboid-shaped bracket and pad, and. El nuevo bracket metálico Damon Q es un gran paso en la tecnología de baja fricción y autoligado pasivo que brinda mucho más que dientes alineados. However, precise bracket placement still relies on the professional’s individual skills and the accuracy of bonding procedures [1-3]. The authors recommend FAQ. Precision bracket placement. We determined the positions of brackets in 28 teeth of 15 cases according to positioning methods that use bracket height or root information. Instrumentsmall initial arch wires and the 0. txt) or read online for free. The patient was diagnosed with normodivergent face pattern, proclined upper anterior, and crowded lower anterior, concave profile, potentially competent lips, reverse overjet and 0% overbite, and shallow mentolabial sulcus. Furthermore, the final production version of the Damon Clear bracket offers increased wire rotational strength compared with the earlier designs used in the first two clinical trials. *Corresponding author. Damon Q. Combining reliable Damon ™ bracket features with the convenience of ample under tie-wing area and greater rotational control, Damon ™ Q2 offers the versatility to efficiently treat ALL of your cases with simplified mechanics. DQ2 provides four solid walls with a refined precision slot and 2x the rotation control for optimal precision, predictability, and efficient finishing. Materials and Methods: A sample of 60 patients treated with all four first premolar extraction, using Damon Q bracket system were selected from the Department of Orthodontics. 854. bracket slot size, engagement angle of the wire in the bracket slot, bracket placement as related to tooth morphology, mode of ligation. Critical placement of the bonds in the Damon System is essential for success in treatment. Damon ™ SL. scribe line help guide bracket placement. Convenient use of . we use Damon braces or self ligating braces. 2. Damon ™ 3. 025″ SS and TMA wires, respectively, at an interbracket distance of 12 mm. Damon Q brackets generated the highest torquing moment of 25. Perio & Surgery. There has been lot of evidence in literature which. 76 minutes With In-Ovation* doctors realize a chairside time savings of approximately 3 hours per patient. A rhomboidal shape of the bracket and slide which facilitates bracket siting 3. Additionally, some studies find that Damon braces are more efficient than traditional braces, but all in all, both methods are very successful. . The LL5, UR1, and L3-3 were repositioned for ideal placement. Braces are a type of appliance that use pressure to adjust the positioning of your teeth and jaw. Upper . 019 × 0. Challenges of Vertical Bracket Placement To Learn More Each of the separate elements in the MBT System can. 025 SS Lower (pre-posted) Most cases finished with the working archwires. Sign up for updates and exclusive savings on deals and promotions. • Position the archwire stops at the desired location, typically at or near the midline (anterior to crowding). Quick and easy wire changesCustomized bracket System (Figure 2) (InsigniaTMUSA) and 10 patients taken in Group B are treated with Non-customized Bracket system (Figure 5) (Damon Q bracket system). The result is a crystal-clear appliance that goes beyond all aesthetic and functional expectations. appliances • Are a sets of brackets designed to guide teeth directly to their goal positions. and . More studies are needed in order to perform a systematic review or meta-analysis on the. 5 mm from incisal edge. What Are The Advantages of Damon Braces. Methods: This study utilized 60 upper right central incisor Damon Q brackets and 60 Ormco Orthos Twin brackets. Damon Q brackets generated higher torque values compared to Smart Clip brackets with both SS and TMA wires. 8 Nmm for Damon 2 (PSL) bracket with a 0. There is 9° play between 19 × 25 stainless steel archwires and the Damon bracket slot creates the Multiloop Edgewise Archwire effect which is effective in treating open bites, severe Class IIs, and Class IIIs, and asymmetry patients, without bending complicated loops. . 23 Nmm and for the Speed (ASL) brackets, it was 3. Nine years after Ormco Corp, Orange, Calif, unveiled the Damon™ Q bracket, orthodontists finally have the answer to what’s next: the Damon™ Q2 (DQ2). Damon Clear2 – real innovation in transparency. Damon Q. 019 × 0. damon lower brackets d3mx % dq % 2. 1741 • 714. SLX. DIBS has transformed my practice. txt) or read online for free. Tom Pitts with an emphasis on smile arc. ¹ Having the teeth upright and aligned into a smile “arc” can also add to a smile’s appeal. SPEED Bracket Placement Guide v2012 Dr Sylvain Chamberland. 2001. Studies have shown that a fuller smile, with a wider arch, is more attractive. In clear ceramic braces from Damon clear© they have recently developed the Damon Clear 2© system. MP trays were designed with a bracket positioning guide on the surfaces of the teeth (Fig 3, C). 9 N for the right central lower incisor prescription. When it opens new doors to practice efficiency, clinical flexibility, patient comfort and aesthetics. • The Damon philosophy is based on the principle of using just enough force to initiate tooth movement—the threshold force. Watch Video. only make archwire placement more convenient and secure, but also have lower kinetic frictional force than conventional brackets. Anterior bite turbos were bond - ed to the lingual aspects of the upper central inci - sors. Damon. 3 & 4 Std. 40 Nmm. Comparison of . Convenient. The Damon Q brackets with optional torque values were not used as 'sets' otherwise the correct torque for each tooth was selected. Mayhew MJ: Computer-aided bracket placement for indirect bonding. 019 × 0. 018 $ 1,547. A, Process of bracket placement on a digital model (using FA point. He put the two brackets on a common base in order to assure alinement and facilitate attachment. scribe line help guide bracket placement. Your smile design, your finish. Kit Damon Q U/I Torque Alto cantidad. Buccal tubes: Cure by positioning mesially and occlusally to the tube. ! ! The positioning gauge, rhomboid-shaped bracket and pad, and vertical scribe line guide precision bracket placement for smile arc enhancement. 071 mm. Ked. The most common placement is on either side of a central. On Target Bracket Placement with eXceed Trays (06. Earlier this year, Ormco unveiled its latest PSL bracket and addition to the Damon system, Damon Q2 (DQ2). All positioning gauges are colour-coded to aid in bracket selection and torque value identification: Green for low torque, Blue for standard torque, red for super torque. The Damon Ultima System is the first true full expression orthodontic system designed for faster and more precise finishing. Damon ™ Q . 4-Damon Q brackets 5. More information. 1 +2x U3-3 compared to original DQ bracket. to help position the bracket accurately in the vertical dimen- sion, fasten bonding, reduce chairside time. pad) occlusal - gingival (tie wing. Damon ™ Q. 2. The Concept of Variable Torque Prescription. Starting from Damon 3©, to Damon 3mx©, to Damon Q©, to Damon Q2© followed by the latest development, the Damon Ultima™© system. Lower arch; a . 1. and . 45 Nmm, while Smart Clip brackets generated 22. • At 25° of twist: Mc ! 35Nmm • No statistic " between the 3 Bk • At 20° of twist: Mc ! 21 Nmm Damon Q • More than Morina et al because it is measured at the bk and not at 10 mm away • SPEED brackets that clip did not opened have similar torque curve as Damon and In-Ovation R In-Ovation-R • Conclusion "Bracket deformation occurs above. Downloads. 6 Nmm for the Fascination 2 (Ceramic, conventionally ligated with stainless steel ligation), 8. help guide bracket placement. 022 inch diameter stainless steel arch wires while , groups 2, 4 ,6 and 8 tested in combination with 0. These self-ligating braces use a slide mechanism to hold the wire, which allows teeth to move more freely, quickly and comfortably. ². Damon Q Bracket -Braces. •. Damon3 consists of brackets that are half metal and half clear. Nigel Harradine The History and Development of Self-Ligating Brackets Seminars in Orthodontics, Vol 14, No 1 (March), 2008: pp 5-18 5. 025 inch stainless steel wire in a 0. The positioning gauge, rhomboid-shaped bracket and pad, and vertical scribe line guide precision bracket placement for smile arc enhancement. Brackets. Comparison of . The indirect bonding solution is a function within the 3Shape orthodontics software for practices and laboratories. The main advantage of. Starting from Damon 3©, to Damon 3mx©, to Damon Q©, to Damon Q2© followed by the latest development, the Damon Ultima™© system. They also create nooks and crannies within your mouth where food can easily become trapped. * Current Damon Q drop-in hooks (242-0114) are compatible with Damon Q2 brackets. Bonding errors may also occur during indirect bonding appointments and cause bracket placement errors that negate the accuracy. 100536 IntechOpenCurrent. The pre-treatment. Damon Q bracket is a self-ligating bracket. DAMON CLEAR BRACKET DIMENSIONS tooth mesial - distal 1 buccal - lingual (incl. Self-ligating brackets are different from regular metal brackets because they have a built-in sliding door mechanism that enables them to secure the wire. Ormco’s Damon Ultima System also includes a novel redesign of the cross-sectional geometry of the traditional rectangular wire. Results Damon Q brackets generated higher torque values compared to Smart Clip brackets with both SS and TMA wires. Join the conversationMetal brackets: Cure the adhesive by positioning the light guide mesial and distal t o each bracket. 1. • Color-coded positioning gauges on brackets (3-3) denote torque values. 3Shape, Copenhagen, Denmark, announced its indirect bonding solution now integrates with the Damon ™ System Bracket library from Ormco Corp, Orange, Calif. single bracket that contact the inside of the archwire. 022-in Damon Q brackets (Ormco, Glendora, Calif) in this study. With the Damon Ultima System, brackets are designed for center-point slot alignment at the FA point for desired torque expression and easier, more precise bracket placement. The metal Damon Q is a major step forward in low-friction, passive self-ligation technology that delivers far more than straight teeth. 2. Damon ™ 3. Damon braces use a self-litigating sliding system to connect archwires to brackets instead of elastic ties. All positioning gauges are colour-coded to aid in bracket selection and torque value identification: Green for low torque, Blue for standard torque, red for super torque. The results for Score 3 were 0% in both MBT and Damon brackets. Spectacular improvement in efficiency. The Damon System Bracket library joins more than 150 original bracket. Damon Q is an essential part of the Damon™ System, a proven combination of passive self-ligating brackets, high-tech archwires and minimally invasive treatment protocols with benefits that are more than just straight teeth. Ordinarily, archwires can be inserted with the fingertips and the slides will close easily, either with. Tom Pitts with an emphasis on smile arc. 31 Nmm with 0. Results Damon Q brackets generated higher torque values compared to Smart Clip brackets with both SS and TMA wires. Damon ™ Q2. The underlying principle behind the threshold force is that it must be low enough to prevent. ! !When it opens new doors to practice efficiency, clinical flexibility, patient comfort and aesthetics. Damon Clear Bracket Placement Gauges • Removable positioning gauge with scaler notch and rhomboid-. The Damon System is a name brand of self-ligating braces available in two different types: self-ligating. help guide bracket placement. On the other hand, since indirect bonding requires laboratory procedures, it becomes more expensive . 1 mm. 2001. • The mesiodistal width of the pad and the. Introduction. Scaler Notch Low Torque. 1 Avex brackets are made using a proprietary CNC process that provides more accuracy than any other bracket. “Braces really grab a hold of your teeth, while Invisalign kinda squeezes your teeth. Designed to provide improved patient comfort. 72 Nmm and 7. The positioning gauge, rhomboid-shaped bracket and pad, and vertical scribe line guide precision bracket placement for smile arc enhancement. . doctors new to the Damon System commit. scribe line help guide bracket placement. Brackets Placement. from publication: The Value of Self-Ligating Brackets in Orthodontics: About the Damon. 2005. 72 Nmm and 7. Begin with the end in sight. drop-in hooks * and optional permanent hooks designed for durability with Ormco’s elastics and auxiliaries. Lima is a Professor, Darwin Dentistry Institute, Cuiabá. In both bracket types, the exposure to acidic attack induced significantly higher friction than exposure to water storage only. 0 20 7 92 3-3 high t. 0215. MP trays were designed with a bracket positioning guide on. Combining reliable Damon ™ bracket features with the convenience of ample under tie-wing area and greater rotational control, Damon ™ Q2 offers the versatility to efficiently treat ALL of your cases with simplified mechanics. ” While there are examples of Damon Q brackets in the current sample with 90° corners, the great majority have large rounded internal line angles. 1 N and 3. U. Damon ™ Q . Both ways can work, but in some cases, braces are a better choice,” says Dr. designed for durability with Ormco’s elastics and auxiliaries. Insignia metal twin brackets are individu- alized by a precise milling of the slot, based on each single bracket position on the tooth in the specific setup. Damon Q brackets are the most rectangular in shape, with nearly 90-degree corners between the slot bottom and walls. Drop-in hooks, piggyback wires or TAD auxiliaries — all while progressing through the Damon archwire sequence regardless of round or rectangular wires. 2009. Supplied with high-precision positioning gauges and dual slots for auxiliary wires for new treatment applications. Allows for convenient placement of drop-in hooks. Errors in bracket position could lead to an This case report was done to check the clinical guide for ver- improper finish, hampered esthetics and altered function of tical positioning of the bracket. Whether you are new to self-ligation or an experienced user, Damon’s system by Dr. The crimpable hook placement is at the distal of lateral incisor on SS 0,019 x 0,025working wire.