Clinical and Radiographical Evaluation of Two Types of Composite Materialsstrip Crown in Primary Molars
Condition: Tooth Decay
MeSH terms: Dental Caries
Study type: Interventional

Summary: 
      Alterations in oral health of children interfere with their quality of life. Dental caries is
      the most common public health problem of children . The disease is the result of a complex
      interaction between acid producing tooth-adherent bacteria and fermentable carbohydrates.
      Over time, the acids in the dental plaque demineralize enamel and dentin in the fissures and
      the smooth surfaces of the tooth. The earliest visual sign of dental caries is white spot
      lesion. If demineralization continues, the surfaces of the white spot will cavitate,
      resulting in a cavity. If demineralization environment is reduced or eliminated, white spot
      lesions may remineralize and not progress. Risk factors include high numbers of cariogenic
      bacteria, high frequency sugar consumption, inadequate salivary flow, insufficient fluoride
      exposure, poor oral hygiene, and poverty.

      The early diagnosis and management of caries still a challenge of dental care for children .
      The prefabricated metal crowns are often the first choice for the repair of severely damaged
      primary teeth and have been one of the most effective and efficient methods of tooth
      restoration in pediatric dentistry since Humphrey first used them in pediatric patients in
      1950 . They are used to restore primary or permanent teeth with extensive or multisurface
      cavities, cervical decalcification, and/or developmental defects .

      The prefabricated metal crowns have many advantages over other crown types and dental
      restorative materials . Their life span is the same as that of an intact primary tooth, they
      provide protection to the residual tooth structure that may have been weakened after
      excessive caries removal, the technique sensitivity or the risk of making errors during their
      application is low and their cost is low .

      Despite many advantages, the metal appearance of these crowns is unpleasant to the parents
      and children and they prefer tooth-colored restorations to silver-colored fillings regardless
      of location of restorations . Inflammation of the surrounding gingival tissue is a problem
      frequently associated with prefabricated metal crowns. The incidence of gingivitis has been
      reported to be higher around poorly fitting crowns than around the crowns considered to be
      well adapted .

      Considering the increasing demand for esthetic restorations, several treatment options have
      been proposed for primary teeth to overcome this problem such as strip crowns, pre-veneered
      stainless steel crowns and zirconia crowns .

      Strip crown was introduced by Webber et al., in 1979 . strip crowns are available in
      different brands but the most commonly used resin composite strip crowns worldwide is 3M ESPE
      crown (3M ESPE Dental). Composite resin strip crowns (SC) have been utilized for over 2
      decades to restore carious primary teeth . In spite of a long time of using, there is a
      paucity of literature concerning the clinical success of these crowns .

      Incorporation of ceramic nanofibers in dental composites can significantly improve their
      mechanical properties and fracture toughness and thus may extend their service life.

      This study aimed to assess clinically and radiographicaly of primary teeth restored with
      stability of the glassionomer and two composite material crown restoration using the
      preformed strip crown technique in primary molars.
    

Detailed description: 
      Alterations in oral health of children interfere with their quality of life. Dental caries is
      the most common public health problem of children . The disease is the result of a complex
      interaction between acid producing tooth-adherent bacteria and fermentable carbohydrates.
      Over time, the acids in the dental plaque demineralize enamel and dentin in the fissures and
      the smooth surfaces of the tooth. The earliest visual sign of dental caries is white spot
      lesion. If demineralization continues, the surfaces of the white spot will cavitate,
      resulting in a cavity. If demineralization environment is reduced or eliminated, white spot
      lesions may remineralize and not progress. Risk factors include high numbers of cariogenic
      bacteria, high frequency sugar consumption, inadequate salivary flow, insufficient fluoride
      exposure, poor oral hygiene, and poverty.

      The early diagnosis and management of caries still a challenge of dental care for children .
      The prefabricated metal crowns are often the first choice for the repair of severely damaged
      primary teeth and have been one of the most effective and efficient methods of tooth
      restoration in pediatric dentistry since Humphrey first used them in pediatric patients in
      1950 . They are used to restore primary or permanent teeth with extensive or multisurface
      cavities, cervical decalcification, and/or developmental defects .

      The prefabricated metal crowns have many advantages over other crown types and dental
      restorative materials . Their life span is the same as that of an intact primary tooth, they
      provide protection to the residual tooth structure that may have been weakened after
      excessive caries removal, the technique sensitivity or the risk of making errors during their
      application is low and their cost is low .

      Despite many advantages, the metal appearance of these crowns is unpleasant to the parents
      and children and they prefer tooth-colored restorations to silver-colored fillings regardless
      of location of restorations . Inflammation of the surrounding gingival tissue is a problem
      frequently associated with prefabricated metal crowns. The incidence of gingivitis has been
      reported to be higher around poorly fitting crowns than around the crowns considered to be
      well adapted .

      Considering the increasing demand for esthetic restorations, several treatment options have
      been proposed for primary teeth to overcome this problem such as strip crowns, pre-veneered
      stainless steel crowns and zirconia crowns .

      Strip crown was introduced by Webber et al., in 1979 . strip crowns are available in
      different brands but the most commonly used resin composite strip crowns worldwide is 3M ESPE
      crown (3M ESPE Dental). Composite resin strip crowns (SC) have been utilized for over 2
      decades to restore carious primary teeth . In spite of a long time of using, there is a
      paucity of literature concerning the clinical success of these crowns .

      Incorporation of ceramic nanofibers in dental composites can significantly improve their
      mechanical properties and fracture toughness and thus may extend their service life.

      This study aimed to assess clinically and radiographicaly of primary teeth restored with
      stability of the glassionomer and two composite material crown restoration using the
      preformed strip crown technique in primary molars.
    

Intervention name(s): restorative materials
Intervention type(s): Other
Intervention description(s): two types of composite with strip crown in primary molars
Other intervention name(s): composite materials; strip crown
Allocation: Randomized
Intervention model: Parallel Assignment
Masking: Single (Participant)
Primary purpose: Treatment