• Cikkarchívum
    • Általános fogászat
    • COVID-19
    • Endodontia
    • Esztétika
    • Fogtechnika
    • Orthodontia
    • Lézer technológia
    • Implantológia
    • Parodontológia
    • Praxismenedzsment
    • Protetika
    • Szájhigiénia
    • DNEWS
  • Apróhirdetés
    • Apróhirdetések
    • Hirdetés feladása
  • Webshop
  • Események
    • DentalWorld2022
  • Médiaajánló
    • Média ajánló
    • Dental Press Media offers
  • Kapcsolat
Nincs találat
Összes találat

Nincsenek termékek a kosárban.

Dental.hu
  • Szakmai Hírek
  • Endodontia
  • Esztétika
  • Implantológia
  • Orthodontia
  • Szájhigiénia
  • Fogtechnika
  • E-JOURNAL
  • Videótár
  • Szakmai Hírek
  • Endodontia
  • Esztétika
  • Implantológia
  • Orthodontia
  • Szájhigiénia
  • Fogtechnika
  • E-JOURNAL
  • Videótár
Nincs találat
Összes találat
Dental.hu
Nincs találat
Összes találat
Főoldal DNEWS

Minimally invasive technique for non-vital tooth bleaching using traditional Japanese paper
Carlos A. Jurado, Akimasa Tsujimoto, Jose Villalobos-Tinoco, Hidehiko Watanabe, Toshiki Takamizawa, and Masashi Miyazaki

2022-06-17
DNEWS
Olvasási idő: 6 perc
Minimally invasive technique for non-vital tooth bleaching using traditional Japanese paper Carlos A. Jurado, Akimasa Tsujimoto, Jose Villalobos-Tinoco, Hidehiko Watanabe, Toshiki Takamizawa, and Masashi Miyazaki
Megosztom FacebookonMegosztom LinkedinenElküldöm emailben

Case Report

Abstract:

The purpose of this case report is to describe a minimally invasive technique for non-vital tooth bleaching using traditional Japanese paper, known as washi. Non-vital tooth bleaching with a mixture of sodium perborate and 30% hydrogen peroxide rolled in Japanese paper for a traumatically injured tooth, and in-office vital-tooth bleaching for the upper front six teeth and first premolars, were performed. Five-year follow-up showed satisfactory stability in the bleaching effects and did not show any problems in the traumatically injured tooth. The use of Japanese paper for non-vital tooth bleaching may minimize damage to discolored non-vital teeth.

Introduction

Anterior tooth discoloration can pose an esthetic problem, and thus tooth bleaching has become increasingly popular in recent years. The first reports of bleaching for non-vital discolored anterior teeth go back to the mid-19th century using different chemical solutions [1]. In 1951, hydrogen peroxide was first used for non-vital tooth bleaching, and sodium perborate in conjunction with hydrogen peroxide in various concentrations is currently one of the most widely used methods for non-vital tooth bleaching. 

When performing tooth bleaching procedures, it is critical for the clinician to develop a correct diagnosis of the etiology of tooth discoloration, because that is one of the most important considerations in determining an optimal treatment plan. Tooth color is generated by a combination of many factors associated with light and the optical properties of the tooth [2]. Basically, dentin provides the color of the tooth and tooth color is modified by intrinsic and extrinsic coloration. Intrinsic color is determined by the optical properties of teeth and their interaction with incident light. 

During endodontic therapy, blood contents, such as hemosiderin, hemine, hematin, and hematoidin, and their reaction products may penetrate into the dentinal tubules. Various iron containing compounds which combine with sulfide to make black substances are produced. These blood factors are the most common cause of intrinsic discoloration of the teeth due to traumatic injury [3]. In addition, endodontic treatments can cause intrinsic discoloration due to the infiltration of pulpal substances into sur-rounding dentinal tubules. Further, pigmented root canal filling materials, such as the gutta-percha points, cause light diffraction, leading to changes in the optical properties of dentin.

Non-vital tooth bleaching, called internal or walking bleaching, is a minimally invasive method of treating discolored non-vital tooth, but only if performed correctly [1]. However, reports of adverse effects of bleaching have included external root resorption, which can lead to tooth loss, and the incidence has been reported to vary greatly, from 1% to 13% [4]. Although the etiology of root sorption has yet to be comprehensively explained, it is believed that hydrogen peroxide can penetrate the dentin and release oxygen when the bleaching agent is in direct contact with tooth substrates. This results in damage to organic and inorganic components through the dentinal tubules, and the peroxide also reaches periodontal tissues [5]. It has been reported that interleukins released during inflammation can lead to increases in the levels of markers of osteoclastic activity, such as the receptor activator of nuclear factor kappa B-ligand (RANK-L), leading to periodontitis and root resorption [6]. Thus, it is possible that bleaching agents act to cause root resorption through the stimulation of inflammation in periodontal tissue. 

Traditional Japanese paper is known as Washi, and the word “Washi” comes from “Wa” meaning “Japanese” and “Shi” meaning “paper”. Japanese paper is made using fibers from the inner bark of the gampi tree, the mitsumata shrub (Edgeworthia chrysantha), or the paper mulberry (kouzo) bush [7]. It is used for some medical products in Japan such as disposable bed linen, tapes for acupuncture and bandages, although there are almost no clinical reports of its use in dentistry. It is also used in food packaging, and is known to be safe for use in humans under normal conditions. It has unique characteristics including the capability to retain liquid and prevent desiccation. Therefore, Japanese paper may be able to stay wet within the pulp chamber and release the material slowly when compared to direct application of bleaching agent, providing an effective bleaching treatment. 

The aim of this case report is to show a minimally invasive technique for non-vital tooth bleaching using sodium perborate mixed with hydrogen peroxide placed in Japanese paper inside the chamber.

Case Report

A 24-year old female patient presented with tooth staining and requested a veneer (Fig. 1a, b, Shade: C4, April 13, 2014). The patient was referred by an endodontist after having endodontic therapy on tooth #11. She had a traumatic injury to the tooth, and thus needed endodontic treatment in two sessions. The patient had vitality tests and was given a diagnosis of irreversible pulpitis. The tooth was isolated with a rubber dam. After creating the access opening, the pulp tissue in the chamber and pulp, along with bacteria and related debris, was removed. Then, the working length for the treatment measured by means of an electronic apex locator and root canal preparation was performed. The root canal was filled with AH plus root canal sealer (Dentsply Sirona, Milford, DE, USA) and gutta-percha point using the lateral condensation technique. After completion of this endodontic treatment, the patient was referred to us for further treatment to address color change in the tooth.

The patient was informed about minimally invasive treatment with non-vital tooth bleaching, which could be effective without the need to remove tooth structure for a veneer or full coverage crown. The patient accepted the minimally invasive treatment plan using traditional Japanese paper. Ethical approval for use of Japanese paper was received from the IRB of the Centro de Estudios Odontologicos de Queretaro C.E.O. (DENT/060119-153). A rubber dam (Dental Dam, Nic Tone, Bucharest, Romania) was placed to isolated teeth from #15 to #25, and retained with clamps (Clamp #00, Hu-Fridey, Chicago, IL, USA). The pulp chamber was opened using a diamond bur. Measurement of the desired length of 3 mm below the cemento-enamel junction was made (Fig. 2a) and the chamber was cleaned with a spray of water and 29 µm aluminum oxide particles (AquaCare, Velopex International, London, UK) in the pulp chamber, to remove any remnants of pulp tissue in the pulp horns (Fig. 2b). The chamber was etched with 37% phosphoric acid (Total Etch, Ivoclar Vivadent,

Schaan, Liechtenstein) for 5 sec to remove the smear layer and then rinsed and air dried (Fig. 2c). 

Sodium perborate was mixed with 30% hydrogen peroxide (Fig. 3a) to produce a paste-like consistency (Fig. 3b). This mixture was placed in a traditional Japanese paper (Washi Arts, Blaine, WA, USA) (Fig. 3c) and rolled (Fig. 3d). Then the rolled material for bleaching was inserted into the intra-coronal chamber space (Fig. 4a) and placed (Fig. 4b). The access hole was sealed with a resin modified glass ionomer cement (RMGIC, Fuji II LC, GC, Tokyo, Japan). The patient was seen again 2 weeks later. The same protocol was repeated during the second appointment. RMGIC and sodium perborate were removed, and the chamber was cleaned with water, 29 µm aluminum oxide particles and phosphoric acid, and a new mixture 

of sodium perborate with 30% hydroxyl peroxide in the Japanese paper was placed in the chamber and sealed with RMGIC. After the second round of internal bleaching was completed, the mixture material as removed. The chamber was then sealed with dentin and enamel shades of resin composite (Miris, Coltene, Altstätten, Switzerland, Shade: A1). Then, conventional 

in-office vital-tooth bleaching was performed with 35% hydrogen peroxide (Polaoffice, SDI, Bayswater, Victoria, Australia) placed on the teeth for 20 min and then suctioned off with an aspirator tip. This process was repeated 3 times and then the hydrogen peroxide was completely removed with a water spray. The vital-tooth bleaching treatment was repeated one week later. The patient came back to the office 2 weeks later with a satisfactory result. The final shade (Shade: A1) fulfilled the patient’s esthetic desires. Five-year follow-up showed satisfactory color stability (Fig. 5a, b, Shade: A2, June 16, 2019).

Initial (a) extra- and (b) intra-oral view
Access chamber preparation for non-vital tooth bleaching. (a) Measurement of the desired length for the preparation; (b) preparation of the chamber; (c) cleaning of the cham-ber with 37% phosphoric acid etching
Bleaching material and traditional Japanese paper. (a) Mixed sodium perborate with 30% hydrogen peroxide; (b) mix to paste-like consistency; (c) mixture on the paper; (d) covering the material with the paper
Insertion of the material rolled with traditional Japanese paper. (a) Insertion of the material with tweezers; (b) placement of the material
Five-year follow-up (a) extra- and (b) intra-oral view
Discussion

Discoloration of anterior teeth due to endodontic treatment or traumatic injury may pose severe esthetic challenges. The clinical management of non-vital tooth discoloration includes a wide variety of approaches such as full crowns, veneers, or non-vital tooth bleaching [8]. Although veneers or crowns can provide predictable results, those types of treatments require the removal of healthy tooth structure. Non-vital tooth bleaching is beneficial as a minimally invasive technique. However, with non-vital tooth bleaching there have been reports of localized or systemic side effects [9]. Localized effects include possible external root resorption, and damage to tooth substrates through dentinal tubules [10]. Sufficient sealing and slower penetration of hydroxyl peroxide to tooth substrates through dentinal tubules may minimize the occurrence of external root resorption.

Traditional Japanese paper, which includes longer fibers than cotton pellets, was used because it is resistant to breakage and serves as a vehicle for placing the bleaching material into the chamber. In addition, it is possible to maintain moisture in the mixture of sodium perborate and hydrogen peroxide in place for a long time, preserving its effect. Further, Japanese paper consists of bidirectional cellulosic fibers, thus the capillary effect might help the gradual release of bleaching agents across the entire surface. Japanese paper is made with mucilage and long fibers in the Nagashizuki method, resulting in relatively thin, strong sheets with smaller gaps compared to Western paper used currently [7]. This paper can stay wet within the pulp chamber and release the ingredients slowly, providing an effective bleaching treatment. The clinical case presented in this report highlights the effectiveness of sodium perborate mixed with hydrogen peroxide using Japanese paper for non-vital tooth bleaching fol-lowed with in-office bleaching to achieve a successful, minimally invasive and predictable esthetic outcome. 

A 5-year follow-up showed no signs of relapse of the discoloration or root resorption. It can be concluded that a combination of non-vital tooth bleaching with sodium perborate mixed with hydrogen peroxide using traditional Japanese paper and in-office bleaching is a possible treatment for a highly discolored non-vital tooth. 

 

Conflict of interest

The authors have no conflict of interest to declare.

Előző cikk

Az első fogorvostanhallgatók által vezetett implantáció, amelyet robotok segítségével hajtottak végre

Következő cikk

A kalcium-szilikát alapú anyagok endodonciai célú felhasználásának lehetőségei

TOVÁBBI CIKKEK

Conservative Ultrathin Veneer Restorations with Minimal Reduction: A 5-year Follow-up Report

Conservative Ultrathin Veneer Restorations with Minimal Reduction: A 5-year Follow-up Report

2022-06-24
0

ABSTRACT Aim and objective: This case report shows how a feldspathic veneer with diagnostic wax-ups, subsequent mock-up, and reduction guides...

Functional aesthetic speech therapy

Functional aesthetic speech therapy

2022-06-03
0

Introduction Aesthetic medicine is increasingly taking on a global connotation of harmony and balance, defined certainly by historically evolved and...

Predictable management of combined atrophy

Predictable management of combined atrophy

2022-05-27
0

Short and extra-short implants are an increasingly common treatment option for vertical atrophy of the maxilla and mandible with similar...

A new era of advanced dental restorative materials has begun

A new era of advanced dental restorative materials has begun

2022-05-20
0

“Many have tried; few have succeeded” is a saying that certainly rings true in the case of Prof. Ervin Weiss...

LipLase for fuller, smoother lips with no downtime

LipLase for fuller, smoother lips with no downtime

2022-05-13
0

One of the fastest-growing industries in the world is facial aesthetics. Yes, beauty might be in the eye of the...

Immediate functional implants in the aesthetic zone of a heavy smoker

Immediate functional implants in the aesthetic zone of a heavy smoker

2022-05-06
0

Dental implant placement represents the most cost- effective and long-term solution for the replacement of missing teeth and it can...

Továbbiak betöltése
Következő cikk
A kalcium-szilikát alapú anyagok endodonciai célú felhasználásának lehetőségei

A kalcium-szilikát alapú anyagok endodonciai célú felhasználásának lehetőségei

Sürgős változtatásra van szükség a súlyos mentális betegségben szenvedő fogászati betegek kezelésénél

Sürgős változtatásra van szükség a súlyos mentális betegségben szenvedő fogászati betegek kezelésénél

Az egyfázisú sebészeti beavatkozások során alkalmazható új technológiák és  digitális implantológiai megoldások

Az egyfázisú sebészeti beavatkozások során alkalmazható új technológiák és digitális implantológiai megoldások

PRÉMIUM TARTALMAKHOZ

OLVASTA MÁR?

Teljes szájüregi rehabilitáció Zolid FX segítségével

Teljes szájüregi rehabilitáció Zolid FX segítségével

2022-06-27
Conservative Ultrathin Veneer Restorations with Minimal Reduction: A 5-year Follow-up Report

Conservative Ultrathin Veneer Restorations with Minimal Reduction: A 5-year Follow-up Report

2022-06-24
Az Oral-B és a Straumann mérföldkőnek számító szövetséget jelent be a periimplantáris és parodontális egészséggel kapcsolatos tudományos oktatás érdekében

Az Oral-B és a Straumann mérföldkőnek számító szövetséget jelent be a periimplantáris és parodontális egészséggel kapcsolatos tudományos oktatás érdekében

2022-06-23
Az egyfázisú sebészeti beavatkozások során alkalmazható új technológiák és  digitális implantológiai megoldások

Az egyfázisú sebészeti beavatkozások során alkalmazható új technológiák és digitális implantológiai megoldások

2022-06-22
Sürgős változtatásra van szükség a súlyos mentális betegségben szenvedő fogászati betegek kezelésénél

Sürgős változtatásra van szükség a súlyos mentális betegségben szenvedő fogászati betegek kezelésénél

2022-06-21
A kalcium-szilikát alapú anyagok endodonciai célú felhasználásának lehetőségei

A kalcium-szilikát alapú anyagok endodonciai célú felhasználásának lehetőségei

2022-06-20

DENTAL WORLD 2022

APRÓ

  • Fogorvos munkatársat keresünk
    3. kerületi fogászati rendelőnkbe keresünk minimum 2 év tapasztalattal rendelkező fogorvost. Fényképes önéletrajzát az allas@apollonia.hu e-mail címre várjuk.

    [Több]

  • DHDental
    II.kerületi fogászat és szájsebészeti klinikánkra keresünk új munkatársat, tapasztalt asszisztensi / dentál-higiénikusi munkakörbe rugalmas időbeosztással. Elvárások az ideális jelölttel szemben:…

    [Több]

WEBSHOP AJÁNLÓ

  • Fogtechnika éves előfizetés 10 000 Ft
  • Dental Magazinok éves előfizetés 36 000 Ft 19 800 Ft
  • Gengigel Prof 29 990 Ft

VÁLOGASSON!

  • Akciós termékek (14)
  • classified (2)
  • Fogkefék-fogkrémek (18)
    • Emmi-Dent fogkefe, fogkrém (9)
    • Ionickiss fogkefék (3)
    • Megasonex fogkefe (3)
    • Oral B elektromos fogkefék (1)
    • Philips elektromos fogkefék (2)
  • Gengigel (6)
  • Könyvek, Újságok (37)
    • Szakkönyvek (30)
    • Szaklapok (3)
    • Újság előfizetések (4)
  • Naptár (1)
  • Pólók humoros felirattal (4)

IMPRESSZUM

Kiadja: DP Hungary Kft.
1012 Budapest, Kuny Domokos utca 9.
Telefon: +36 30 472 0030, 06-1-793-1874
E-mail: info@dental.hu,
Cégjegyzék szám: 01 09 679976

Felelős kiadó: Nagy Erika
Szerkesztőségi titkár: Bárdos Veronika
Tördelő szerkesztő: Sárközi András
Szakmai tartalom felelős: Dr. Riba Magdolna

Olvasta már?

Teljes szájüregi rehabilitáció Zolid FX segítségével

Conservative Ultrathin Veneer Restorations with Minimal Reduction: A 5-year Follow-up Report

Az Oral-B és a Straumann mérföldkőnek számító szövetséget jelent be a periimplantáris és parodontális egészséggel kapcsolatos tudományos oktatás érdekében

Az egyfázisú sebészeti beavatkozások során alkalmazható új technológiák és digitális implantológiai megoldások

Sürgős változtatásra van szükség a súlyos mentális betegségben szenvedő fogászati betegek kezelésénél

A kalcium-szilikát alapú anyagok endodonciai célú felhasználásának lehetőségei

KÖZLEMÉNYEK

ÁSZF | Adatvédelem

Dental.hu © 2022

Nincs találat
Összes találat
  • Kapcsolat
  • Webshop
  • Apróhirdetések
  • DENTAL WORLD 2022
  • Cikkek
    • Általános fogászat
    • Digitális fogászat
    • Endodontia
    • Esztétika
    • Fogtechnika
    • Implantológia
    • Lézer technológia
    • Orthodontia
    • Parodontológia
    • Praxismenedzsment
    • Protetika
    • Szájhigiénia
    • Szakmai Hírek
    • COVID-19

Dental.hu © 2022

  • Belépés
Elfelejtett jelszó?
Lost your password? Please enter your username or email address. You will receive a link to create a new password via email.