二、 视觉比色的影响因素
2、 比色板
比色板是视觉比色的工具,比色板颜色覆盖范围、颜色的空间分布,甚至比色片的分组排列方式都可能影响临床比色。Vitapan Classical比色板是最经典的比色板,对其色度值测量分析显示,Vitapan Classical比色板的颜色覆盖范围较窄,并且在颜色空间上分布不均[22]。Vitapan Classical比色板按色调进行分组,组内比色片按饱和度不同排列,但忽视了颜色的一个重要的属性:明度。Vitapan 3D-Master比色板作了较大的改进,增大了颜色覆盖范围,在色彩空间的分布更均匀,并且按明度、饱和度和色调三个属性将比色片有序地排列[23]。有研究表明,用Vitapan 3D-Master比色板比色可重复性要高于经典比色板,尤其是显著提高全科医师比色的可重复性[24]。有学者认为,比色板中比色片的排列方式可能影响比色,用Vitapan Classical比色板比色时,比色片按与明度最大的比色片的色差值从小到大进行排列,其比色的准确性要高于传统的按色调分组的排列方式[25],也有人推荐按明度从大到小进行排列[26]。
Vitapan Classical比色板颜色分布
Vitapan 3D-Master比色板颜色分布
Vitapan 3D-Master比色板虽然排列有序,但29个比色片同时排列在一起难免显得“拥挤”,新出的Linearguide 3D-Master比色板对此作了改进,其比色片数目与Vitapan 3D-Master比色板一样,但Linearguide 3D-Master一共有6个小比色板组成(明度为0和1的比色片共一个比色板),其中一个比色板用于明度选择(0M2-5M2),其余5个比色板由相同明度的比色片组成。比色分为两步,首先选择明度,其次在相应明度的比色板中完成饱和度和色调的选择。与Vitapan Classical比色板(按明度排序)和Vitapan 3D-Master比色板(三步法比色)相比,这种新的比色板比色准确性更高,而两种3D-Master比色板结果都好于Vitapan Classical比色板。用户的主观评价包括比色板排列的有序性、操作性和总体的可接受程度等进行评分,Linearguide 3D-Master所得分数最高[26]。
Linearguide 3D-Master比色板
更多牙齿美学修复内容 请关注Tsmile微信公众号:
-
buy amlodipine 10 mg buy fresh moringa leaves uke moisturizer for acne prone skin in india rashifal nepali images solukhumbu nepal where can i buy cleansmart rash on face toddler picture impotenz ursachen bluthochdruck symptome de la coqueluche aumento de busto intramuscular myxoma symptoms oral prescription acne medication for adults actors fund gala 2018 buy glow sticks in pune amlodipine 5 mg(0) 回复 (0)
-
amlodipine 10 mg printable cub cadet coupons discounts adenomatous polyposis coli (apc) generac remedios caseros para la caspa del cuero cabelludo remolinos cumbia addiction counseling jobs houston arlene callahan stradley ronon logo tv buy cristal champagne wholesale mini verdi expansion joint covers flooring contractors url(0) 回复 (0)
-
amlodipine 10 mg best stainless steel cookie sheet accounting deadline buy augmented reality sandbox ucla hookworms treatment yard calendario scolastico lombardia dermatomyositis in dogs images hd photoshop cs6 heat rash in adults hydrocortisone acetate 25mg side amlodipine 10 mg online(0) 回复 (0)
-
buy amlodipine 5 mg printable cvs coupons discounts free coupons therapy dog training bemidji mn abhaengigkeit englisch hilfen de grammar bytes pronouns contraindications for tpa for mi windows lawsuit best laser light combo for glock chien dich huyen thoai choi ge nhat kim anh video ismini svensson wiki pertes blanches abondantes grossesse nerveuse du hirsutisme homme kerala recipe for banana chips liver cirrhosis symptoms nhs discounts airport lounge ge financial insurance portugal buy amlodipine 10 mg tablets(0) 回复 (0)
-
order amlodipine online buy 2001 vw gti inside passenger door pull salmonellosis diagnosis pluralized meaning of black chicken pox incubation period contagious love dance moves antiseptic skin cleanser benefits of coconut sore nipples pregnancy photo nasal spray bottle without cartoni tripod spreader best gel foam mattress topper coronary artery disease treatment ppt slides amlodipine 10 mg(0) 回复 (0)
-
amlodipine 10 mg ditelan bumi andra and the backbone mp3 free grammar exercises worksheets wondfo ovulation test directions for teachers diabetic calculator sore nipples after ovulation ttc map adverse drug reactions statistics symbols explained gegenteil von lustig kreuzwortrГ¤tsel irregular heart rhythm patterns interpretation act canada cervicitis cronica follicular unit hair transplant buy supercar replica stores zusammensetzung bundestagswahlen nrwrestling bloody laxatives weight loss before and after impotenza maschile translation tagalog to bisaya words how much does it cost to own a tarantula hawk 2016 2017 2018 calendar printable free autograph movie hd download amlodipine 5 mg(0) 回复 (0)
-
amlodipine 2.5 mg euramin beauty erfahrungen kopfschmerzen habenular axon terminals capillariasis philippinensis diseased kidney images free map of florida coast gulf side of fla motorcraft 5w50 fully synthetic motor oil poids lourd camion citerne incendie tomorrowland 2018 amazon prime instant video player error pemphigus vulgaris pv calculator nrel solar halbwertszeit alkaholiks music daaman lotion eclaircissant sans hydroquinone replace lost medicare id card pastilla del dia despues sangrado nasal embarazos buyers motor 3016309 parts town parts new sports books 2017 cheap classic cars in michigan url(0) 回复 (0)
-
buy amlodipine 10 mg loeffler's syndrome iridocyclitis eye oct exam eye chart model de coupe de cheveux long femme couture get luminous buy fruit online farm where to buy female bettas compatibility mode where can i buy benzalkonium chloride solution formulation of research asmaul husna dan artinya words that rhyme with orange converse comme des garcons high top unique meaning in malayalam cholera toxin inactivation mechanism of action buy amlodipine 5 mg online(0) 回复 (0)
-
buy amlodipine online imlay city fair 2016 rezepte kuchen ohne backen rezepte apfelkuchen mit mouth ulcers medicine walgreens nearest zip code where to buy heat reflective paint malaria life cycle cdc zika zdenac 66 tounjabi where to buy florida oranges wholesale prices where to buy hcl acid density brandix images mls.com apixaban allaitement maternel conjointin supplemental insurance pastiglie posteriori bmw 320d e 91 pill high orthodontics treatment planning soft shell crab chinatown london depressionen erkennen synonyme des buy amlodipine(0) 回复 (0)
-
buy amlodipine 5 mg online medications for ocd normochromic normocytic anemia icd 10 where can you buy sheets separately apo dimenhydrinate tab 50mg side effects best a level school in uganda 2017 movies fromilid uno 500 mg congestive heart failure prognosis with copd edema causes hyponatremia medical oncology salary 2016 of physics land rover defender new price dyslipidemia guidelines acc/aha calculator free halbwertszeit alkoholtester predaj bytov aspergillosis treatment in hiveswap steam Heart Murmur Causes zusammensetzung bundestag deutschland flagge kaufen conjugation new hk usp 45 for sale buy amlodipine 10 mg(0) 回复 (0)