A
-
Activa bioactive
Comparative Evaluation of Clinical Performance of Three Different Glass Hybrid Restorations in High Caries Risk Patients: A Randomized Control Trial. [Volume 4, Issue 1, 2023, Pages 171-183]
-
AF F-One blue
Assessment of Cleaning Ability of Two Rotary Files in Different Motions: A SEM vitro study [Volume 4, Issue 2, 2023, Pages 349-456]
-
Airway dimensions
Three-Dimensional Evaluation of the Airway Space after Distalization Using Carrière Motion Appliance [Volume 4, Issue 1, 2023, Pages 97-105]
-
Apical Microleakage
Effect of Different Root Canal Irrigating Solutions on the Apical Sealing Ability of Bioceramic and Resin-Based Sealers: An in vitro Study [Volume 4, Issue 1, 2023, Pages 83-96]
-
ARI
Effect Of Er, Cr: YSGG And Er: YAG Lasers During Debonding Of Orthodontic Ceramic Brackets: In Vitro Study [Volume 4, Issue 1, 2023, Pages 35-43]
B
-
Bioactive glass
EFFECT of GLASS IONOMER CEMENTS MODIFICATION with POLY(AMIDO-AMINE) and BIOACTIVE GLASS on THEIR COMPRESSIVE STRENGTH, SOLUBILITY, and SETTING TIME: an IN-VITRO STUDY [Volume 4, Issue 2, 2023, Pages 339-347]
-
Bioceramic BC Sealer
Effect of Different Root Canal Irrigating Solutions on the Apical Sealing Ability of Bioceramic and Resin-Based Sealers: An in vitro Study [Volume 4, Issue 1, 2023, Pages 83-96]
-
Biodentine
Efficacy of Combination of Biodentine and Simvastatin as Pulp Capping Materials in Vital Pulpotomy of Primary Molars: Randomized Clinical Trial [Volume 4, Issue 2, 2023, Pages 205-218]
-
Biodentine & Simvastatin combination
Efficacy of Combination of Biodentine and Simvastatin as Pulp Capping Materials in Vital Pulpotomy of Primary Molars: Randomized Clinical Trial [Volume 4, Issue 2, 2023, Pages 205-218]
-
Bulk Fill
Evaluation of Pulp Reaction of Nanoclay Modified Adhesive Systems Using Bulk Fill Resin Composite [Volume 4, Issue 1, 2023, Pages 13-24]
C
-
Calcium silicate sealers
Effect Of Two Calcium-Silicate and One Resin Sealers On The Fracture Resistance Of Root Dentin Using Different Treatments In Dog’s Teeth (An In Vivo Study) [Volume 4, Issue 1, 2023, Pages 25-33]
-
Carrière Motion Appliance
Three-Dimensional Evaluation of the Airway Space after Distalization Using Carrière Motion Appliance [Volume 4, Issue 1, 2023, Pages 97-105]
-
Cavity disinfection
Microbiological Assessment of Diode Laser in comparison to Chemical Disinfection with Selective Caries Removal [Volume 4, Issue 1, 2023, Pages 161-170]
-
CBCT
Assessment of the Temporomandibular Joint Morphology in Class II Malocclusion using Cone Beam Computed Tomography. [Volume 4, Issue 1, 2023, Pages 77-82]
-
CBCT
Three-Dimensional Evaluation of the Airway Space after Distalization Using Carrière Motion Appliance [Volume 4, Issue 1, 2023, Pages 97-105]
-
CBCT
Relationship between Linear Measurement of Sella-Turcica and Palatally Impacted Canines : Cone Beam Computed Tomographic study [Volume 4, Issue 1, 2023, Pages 107-113]
-
CBCT
Maxillary Transverse Dimensions in Subjects with Impacted Canine Compared with Normal Subjects using Cone Beam Computed Tomography [Volume 4, Issue 1, 2023, Pages 141-147]
-
CBCT
Three-Dimensional Evaluation of Morphologic Differences of Maxillary Lateral Incisor and Canine in Palatal versus Buccal Impacted Canine [Volume 4, Issue 2, 2023, Pages 329-338]
-
CBCT standard resolution
Accuracy of Cone Beam Computed Tomography with Standard Resolution In Detection of Mesiobuccal Root Canal Anatomical Variations in Maxillary Molars [Volume 4, Issue 1, 2023, Pages 149-159]
-
Centering ability
Shaping Ability of Three Nickel-Titanium Systems in Continuous and Reciprocation Motion Using Cone Beam Computed Tomography (In-vitro study) [Volume 4, Issue 2, 2023, Pages 285-299]
-
Cention N
Comparative Evaluation of Clinical Performance of Three Different Glass Hybrid Restorations in High Caries Risk Patients: A Randomized Control Trial. [Volume 4, Issue 1, 2023, Pages 171-183]
-
Cephalometries
Shape and Dimensions of Sella Turcica in Cleft And Non-Cleft Palate Subjects: A Radiographic Study [Volume 4, Issue 1, 2023, Pages 115-122]
-
Ceramic brackets
Effect of Diode laser on debonding of orthodontic ceramic bracket (In Vitro Study) [Volume 4, Issue 1, 2023, Pages 57-63]
-
Citric acid
Effect of Different Root Canal Irrigating Solutions on the Apical Sealing Ability of Bioceramic and Resin-Based Sealers: An in vitro Study [Volume 4, Issue 1, 2023, Pages 83-96]
-
Class II malocclusion
Assessment of the Temporomandibular Joint Morphology in Class II Malocclusion using Cone Beam Computed Tomography. [Volume 4, Issue 1, 2023, Pages 77-82]
-
Clinical examination
Evaluation of Immediate Loading Mini-implant versus Traditional Implant (Clinical and Radiographic Study) [Volume 4, Issue 2, 2023, Pages 243-251]
-
Composite
The Extent of Secondary Caries Formation around some Restorative Materials: An In Vitro Study [Volume 4, Issue 2, 2023, Pages 219-223]
-
Composite veneer
In-vitro evaluation of shear bond strength of different veneering materials to CAD/CAM zirconia ceramics [Volume 4, Issue 1, 2023, Pages 123-129]
-
Compressive strength
EFFECT of GLASS IONOMER CEMENTS MODIFICATION with POLY(AMIDO-AMINE) and BIOACTIVE GLASS on THEIR COMPRESSIVE STRENGTH, SOLUBILITY, and SETTING TIME: an IN-VITRO STUDY [Volume 4, Issue 2, 2023, Pages 339-347]
-
Computed tomography
Shape and Dimensions of Sella Turcica in Cleft And Non-Cleft Palate Subjects: A Radiographic Study [Volume 4, Issue 1, 2023, Pages 115-122]
-
Cone beam computed tomography
Accuracy Of Cone Beam Computed Tomography In Horizontal Linear Skull Measurements [Volume 4, Issue 2, 2023, Pages 225-232]
-
Cone beam computed tomography
Accuracy of Cone Beam Computed Tomography in Volumetric Evaluation of the Mandibular Condyle [Volume 4, Issue 2, 2023, Pages 233-242]
-
Conventional implants
Evaluation of Immediate Loading Mini-implant versus Traditional Implant (Clinical and Radiographic Study) [Volume 4, Issue 2, 2023, Pages 243-251]
-
CPP-ACP
Effect of Two Remineralizing Agents on Shear Bond Strength of Two Orthodontic Composites: An In-vitro Study [Volume 4, Issue 1, 2023, Pages 131-139]
-
Cranial base
Correlation between Cranial Base Angle and Various Types of Sagittal Skeletal Discrepancies [Volume 4, Issue 1, 2023, Pages 195-203]
D
-
Debonding
Effect Of Er, Cr: YSGG And Er: YAG Lasers During Debonding Of Orthodontic Ceramic Brackets: In Vitro Study [Volume 4, Issue 1, 2023, Pages 35-43]
-
Debonding
Effect of Laser Debonding on Color Change of Three Different Ceramic Materials [Volume 4, Issue 2, 2023, Pages 301-312]
-
Dellite® 43B
Evaluation of Pulp Reaction of Nanoclay Modified Adhesive Systems Using Bulk Fill Resin Composite [Volume 4, Issue 1, 2023, Pages 13-24]
-
Dellite® LVF modified Adhesive system
Evaluation of Pulp Reaction of Nanoclay Modified Adhesive Systems Using Bulk Fill Resin Composite [Volume 4, Issue 1, 2023, Pages 13-24]
-
Dental plaque
Effect of Honeybee`s Product (Propolis) Mouth rinse in Inhibition of Plaque Accumulation and Improvement of Gingival Health [Volume 4, Issue 1, 2023, Pages 1-11]
-
Dentin
Effect Of Two Calcium-Silicate and One Resin Sealers On The Fracture Resistance Of Root Dentin Using Different Treatments In Dog’s Teeth (An In Vivo Study) [Volume 4, Issue 1, 2023, Pages 25-33]
-
Diode laser
Effect of Diode laser on debonding of orthodontic ceramic bracket (In Vitro Study) [Volume 4, Issue 1, 2023, Pages 57-63]
-
Diode laser
Microbiological Assessment of Diode Laser in comparison to Chemical Disinfection with Selective Caries Removal [Volume 4, Issue 1, 2023, Pages 161-170]
E
-
EDTA
Effect of Different Root Canal Irrigating Solutions on the Apical Sealing Ability of Bioceramic and Resin-Based Sealers: An in vitro Study [Volume 4, Issue 1, 2023, Pages 83-96]
-
Er Cr: YSGG laser
The Effect of Two Types of Erbium Laser and Light Cure Fluoride Varnish on Enamel Demineralization and Surface Microhardness around Metal Orthodontic Brackets: An in-Vitro study [Volume 4, Issue 2, 2023, Pages 277-283]
-
Er: YAG laser
Effect of Laser Debonding on Color Change of Three Different Ceramic Materials [Volume 4, Issue 2, 2023, Pages 301-312]
-
Er:YAG laser
The Effect of Two Types of Erbium Laser and Light Cure Fluoride Varnish on Enamel Demineralization and Surface Microhardness around Metal Orthodontic Brackets: An in-Vitro study [Volume 4, Issue 2, 2023, Pages 277-283]
-
ESR
Effect Of Er, Cr: YSGG And Er: YAG Lasers During Debonding Of Orthodontic Ceramic Brackets: In Vitro Study [Volume 4, Issue 1, 2023, Pages 35-43]
F
-
Fracture resistance
Effect Of Two Calcium-Silicate and One Resin Sealers On The Fracture Resistance Of Root Dentin Using Different Treatments In Dog’s Teeth (An In Vivo Study) [Volume 4, Issue 1, 2023, Pages 25-33]
-
Fracture strength
Fracture Strength And Marginal Gap of Two Different Types Of Hybrid Ceramic Crowns [Volume 4, Issue 1, 2023, Pages 185-194]
G
-
Glass hybrid restorations
Comparative Evaluation of Clinical Performance of Three Different Glass Hybrid Restorations in High Caries Risk Patients: A Randomized Control Trial. [Volume 4, Issue 1, 2023, Pages 171-183]
-
Glass Ionomer
The Extent of Secondary Caries Formation around some Restorative Materials: An In Vitro Study [Volume 4, Issue 2, 2023, Pages 219-223]
H
-
High caries risk patients
Comparative Evaluation of Clinical Performance of Three Different Glass Hybrid Restorations in High Caries Risk Patients: A Randomized Control Trial. [Volume 4, Issue 1, 2023, Pages 171-183]
-
Histological examination
Study the Potential Impacts of Chronic Oral Administration of Silver Nanoparticles on the Lingual Mucous Membrane and Salivary Glands of Albino Rats [Volume 4, Issue 1, 2023, Pages 65-76]
-
Hybrid Ceramics-
Effect of Laser Debonding on Color Change of Three Different Ceramic Materials [Volume 4, Issue 2, 2023, Pages 301-312]
-
Hybrid Cermics
Fracture Strength And Marginal Gap of Two Different Types Of Hybrid Ceramic Crowns [Volume 4, Issue 1, 2023, Pages 185-194]
I
-
Immediately loaded mini-implants
Evaluation of Immediate Loading Mini-implant versus Traditional Implant (Clinical and Radiographic Study) [Volume 4, Issue 2, 2023, Pages 243-251]
-
Impacted canine
Maxillary Transverse Dimensions in Subjects with Impacted Canine Compared with Normal Subjects using Cone Beam Computed Tomography [Volume 4, Issue 1, 2023, Pages 141-147]
-
Impacted canine
Three-Dimensional Evaluation of Morphologic Differences of Maxillary Lateral Incisor and Canine in Palatal versus Buccal Impacted Canine [Volume 4, Issue 2, 2023, Pages 329-338]
-
Impacted canines
Relationship between Linear Measurement of Sella-Turcica and Palatally Impacted Canines : Cone Beam Computed Tomographic study [Volume 4, Issue 1, 2023, Pages 107-113]
-
Impacted mandibular third molar
Clinical and Radiographic Evaluation of Ozone Therapy in Odontectomy of Impacted Mandibular Third Molar [Volume 4, Issue 2, 2023, Pages 269-275]
-
Impaction
Comparative Study between Low Level Laser Therapy and Ultrasound Therapy for minimizing Postoperative Trismus after Surgical Removal of Mandibular Third Molars [Volume 4, Issue 2, 2023, Pages 253-259]
-
Intra pulpal temperature
Effect of Diode laser on debonding of orthodontic ceramic bracket (In Vitro Study) [Volume 4, Issue 1, 2023, Pages 57-63]
K
-
Ketac Nano
Comparative Evaluation of Clinical Performance of Three Different Glass Hybrid Restorations in High Caries Risk Patients: A Randomized Control Trial. [Volume 4, Issue 1, 2023, Pages 171-183]
-
KEYWORDS: CAD/CAM
Marginal Integrity of Temporary Bridges Constructed by CAD/CAM, Three Dimentional Printer and Conventional Method [Volume 4, Issue 2, 2023, Pages 357-365]
-
KEYWORDS: Low-level laser therapy
Comparative Study between Low Level Laser Therapy and Ultrasound Therapy for minimizing Postoperative Trismus after Surgical Removal of Mandibular Third Molars [Volume 4, Issue 2, 2023, Pages 253-259]
L
-
Lithium Disilicate
Fracture Strength And Marginal Gap of Two Different Types Of Hybrid Ceramic Crowns [Volume 4, Issue 1, 2023, Pages 185-194]
-
Lithium disilicate veneer
In-vitro evaluation of shear bond strength of different veneering materials to CAD/CAM zirconia ceramics [Volume 4, Issue 1, 2023, Pages 123-129]
-
Lithium silicate
Fracture Strength And Marginal Gap of Two Different Types Of Hybrid Ceramic Crowns [Volume 4, Issue 1, 2023, Pages 185-194]
M
-
Mandibular 3rd molar
Comparative Study between Low Level Laser Therapy and Ultrasound Therapy for minimizing Postoperative Trismus after Surgical Removal of Mandibular Third Molars [Volume 4, Issue 2, 2023, Pages 253-259]
-
Marginal gap
Fracture Strength And Marginal Gap of Two Different Types Of Hybrid Ceramic Crowns [Volume 4, Issue 1, 2023, Pages 185-194]
-
Marginal gap
Marginal Integrity of Temporary Bridges Constructed by CAD/CAM, Three Dimentional Printer and Conventional Method [Volume 4, Issue 2, 2023, Pages 357-365]
-
Maxillary width
Maxillary Transverse Dimensions in Subjects with Impacted Canine Compared with Normal Subjects using Cone Beam Computed Tomography [Volume 4, Issue 1, 2023, Pages 141-147]
-
Mechanical Properties
Effect of Laser Debonding on Color Change of Three Different Ceramic Materials [Volume 4, Issue 2, 2023, Pages 301-312]
-
Morphology
Shape and Dimensions of Sella Turcica in Cleft And Non-Cleft Palate Subjects: A Radiographic Study [Volume 4, Issue 1, 2023, Pages 115-122]
-
Morphology
Three-Dimensional Evaluation of Morphologic Differences of Maxillary Lateral Incisor and Canine in Palatal versus Buccal Impacted Canine [Volume 4, Issue 2, 2023, Pages 329-338]
-
Mouth wash
Effect of Honeybee`s Product (Propolis) Mouth rinse in Inhibition of Plaque Accumulation and Improvement of Gingival Health [Volume 4, Issue 1, 2023, Pages 1-11]
-
Muscle regeneration
Effect of Thymoquinone on Skeletal Muscle Regeneration and Innervation in Induced Degeneration of the Hamster Buccal Pouch [Volume 4, Issue 2, 2023, Pages 313-328]
N
-
Neurofilament heavy chain
Effect of Thymoquinone on Skeletal Muscle Regeneration and Innervation in Induced Degeneration of the Hamster Buccal Pouch [Volume 4, Issue 2, 2023, Pages 313-328]
O
-
Odontectomy
Clinical and Radiographic Evaluation of Ozone Therapy in Odontectomy of Impacted Mandibular Third Molar [Volume 4, Issue 2, 2023, Pages 269-275]
-
Optical properties
Effect of Laser Debonding on Color Change of Three Different Ceramic Materials [Volume 4, Issue 2, 2023, Pages 301-312]
-
Orthodontics
Accuracy Of Cone Beam Computed Tomography In Horizontal Linear Skull Measurements [Volume 4, Issue 2, 2023, Pages 225-232]
-
Ozonated water
Effect of Different Root Canal Irrigating Solutions on the Apical Sealing Ability of Bioceramic and Resin-Based Sealers: An in vitro Study [Volume 4, Issue 1, 2023, Pages 83-96]
-
Ozone
Clinical and Radiographic Evaluation of Ozone Therapy in Odontectomy of Impacted Mandibular Third Molar [Volume 4, Issue 2, 2023, Pages 269-275]
P
-
Pax-7
Effect of Thymoquinone on Skeletal Muscle Regeneration and Innervation in Induced Degeneration of the Hamster Buccal Pouch [Volume 4, Issue 2, 2023, Pages 313-328]
-
Polyamido-amine
EFFECT of GLASS IONOMER CEMENTS MODIFICATION with POLY(AMIDO-AMINE) and BIOACTIVE GLASS on THEIR COMPRESSIVE STRENGTH, SOLUBILITY, and SETTING TIME: an IN-VITRO STUDY [Volume 4, Issue 2, 2023, Pages 339-347]
-
Polycrystalline
Effect Of Er, Cr: YSGG And Er: YAG Lasers During Debonding Of Orthodontic Ceramic Brackets: In Vitro Study [Volume 4, Issue 1, 2023, Pages 35-43]
-
Polymer infiltrated ceramic
Fracture Strength And Marginal Gap of Two Different Types Of Hybrid Ceramic Crowns [Volume 4, Issue 1, 2023, Pages 185-194]
-
Propolis
Effect of Honeybee`s Product (Propolis) Mouth rinse in Inhibition of Plaque Accumulation and Improvement of Gingival Health [Volume 4, Issue 1, 2023, Pages 1-11]
-
Pulpotomy
Efficacy of Combination of Biodentine and Simvastatin as Pulp Capping Materials in Vital Pulpotomy of Primary Molars: Randomized Clinical Trial [Volume 4, Issue 2, 2023, Pages 205-218]
R
-
Radiographic examination
Evaluation of Immediate Loading Mini-implant versus Traditional Implant (Clinical and Radiographic Study) [Volume 4, Issue 2, 2023, Pages 243-251]
-
Reciproc Blue
Assessment of Cleaning Ability of Two Rotary Files in Different Motions: A SEM vitro study [Volume 4, Issue 2, 2023, Pages 349-456]
-
Root canal obturation
Effect Of Two Calcium-Silicate and One Resin Sealers On The Fracture Resistance Of Root Dentin Using Different Treatments In Dog’s Teeth (An In Vivo Study) [Volume 4, Issue 1, 2023, Pages 25-33]
S
-
Sandblasting
Effect of Sandblasting on Retention of Lingual Fixed Retainers: An in Vitro Study [Volume 4, Issue 2, 2023, Pages 261-268]
-
Scanning electron microscope
Effect of Two Retreatment Systems on the Bond Strength of TotalFill Bioceramic sealer: An in vitro study [Volume 4, Issue 1, 2023, Pages 45-56]
-
Scanning electron microscope
Assessment of Cleaning Ability of Two Rotary Files in Different Motions: A SEM vitro study [Volume 4, Issue 2, 2023, Pages 349-456]
-
Secondary caries
The Extent of Secondary Caries Formation around some Restorative Materials: An In Vitro Study [Volume 4, Issue 2, 2023, Pages 219-223]
-
Selective caries removal
Microbiological Assessment of Diode Laser in comparison to Chemical Disinfection with Selective Caries Removal [Volume 4, Issue 1, 2023, Pages 161-170]
-
Sella-Turcica
Relationship between Linear Measurement of Sella-Turcica and Palatally Impacted Canines : Cone Beam Computed Tomographic study [Volume 4, Issue 1, 2023, Pages 107-113]
-
Setting time
EFFECT of GLASS IONOMER CEMENTS MODIFICATION with POLY(AMIDO-AMINE) and BIOACTIVE GLASS on THEIR COMPRESSIVE STRENGTH, SOLUBILITY, and SETTING TIME: an IN-VITRO STUDY [Volume 4, Issue 2, 2023, Pages 339-347]
-
Shear bond strength
Effect of Diode laser on debonding of orthodontic ceramic bracket (In Vitro Study) [Volume 4, Issue 1, 2023, Pages 57-63]
-
Shear bond strength
In-vitro evaluation of shear bond strength of different veneering materials to CAD/CAM zirconia ceramics [Volume 4, Issue 1, 2023, Pages 123-129]
-
Shear bond strength
Effect of Two Remineralizing Agents on Shear Bond Strength of Two Orthodontic Composites: An In-vitro Study [Volume 4, Issue 1, 2023, Pages 131-139]
-
Simvastatin
Efficacy of Combination of Biodentine and Simvastatin as Pulp Capping Materials in Vital Pulpotomy of Primary Molars: Randomized Clinical Trial [Volume 4, Issue 2, 2023, Pages 205-218]
-
Smear layer
Assessment of Cleaning Ability of Two Rotary Files in Different Motions: A SEM vitro study [Volume 4, Issue 2, 2023, Pages 349-456]
-
Solubility
EFFECT of GLASS IONOMER CEMENTS MODIFICATION with POLY(AMIDO-AMINE) and BIOACTIVE GLASS on THEIR COMPRESSIVE STRENGTH, SOLUBILITY, and SETTING TIME: an IN-VITRO STUDY [Volume 4, Issue 2, 2023, Pages 339-347]
T
-
Temporary bridges
Marginal Integrity of Temporary Bridges Constructed by CAD/CAM, Three Dimentional Printer and Conventional Method [Volume 4, Issue 2, 2023, Pages 357-365]
-
Thymoquinone
Effect of Thymoquinone on Skeletal Muscle Regeneration and Innervation in Induced Degeneration of the Hamster Buccal Pouch [Volume 4, Issue 2, 2023, Pages 313-328]
-
TMJ
Assessment of the Temporomandibular Joint Morphology in Class II Malocclusion using Cone Beam Computed Tomography. [Volume 4, Issue 1, 2023, Pages 77-82]
-
Trismus
Comparative Study between Low Level Laser Therapy and Ultrasound Therapy for minimizing Postoperative Trismus after Surgical Removal of Mandibular Third Molars [Volume 4, Issue 2, 2023, Pages 253-259]
U
-
Ultrasound therapy
Comparative Study between Low Level Laser Therapy and Ultrasound Therapy for minimizing Postoperative Trismus after Surgical Removal of Mandibular Third Molars [Volume 4, Issue 2, 2023, Pages 253-259]
V
-
Veneered zirconia
In-vitro evaluation of shear bond strength of different veneering materials to CAD/CAM zirconia ceramics [Volume 4, Issue 1, 2023, Pages 123-129]
-
Volumetric accuracy
Accuracy of Cone Beam Computed Tomography in Volumetric Evaluation of the Mandibular Condyle [Volume 4, Issue 2, 2023, Pages 233-242]
W
-
Water displacement method
Accuracy of Cone Beam Computed Tomography in Volumetric Evaluation of the Mandibular Condyle [Volume 4, Issue 2, 2023, Pages 233-242]
-
White spot lesion
The Effect of Two Types of Erbium Laser and Light Cure Fluoride Varnish on Enamel Demineralization and Surface Microhardness around Metal Orthodontic Brackets: An in-Vitro study [Volume 4, Issue 2, 2023, Pages 277-283]
Y
-
YAG
Effect Of Er, Cr: YSGG And Er: YAG Lasers During Debonding Of Orthodontic Ceramic Brackets: In Vitro Study [Volume 4, Issue 1, 2023, Pages 35-43]
-
YSGG
Effect Of Er, Cr: YSGG And Er: YAG Lasers During Debonding Of Orthodontic Ceramic Brackets: In Vitro Study [Volume 4, Issue 1, 2023, Pages 35-43]
Your query does not match with any item