title: Antibacterial efficacy and effect of Morinda citrifolia L. mixed with irreversible hydrocolloid for dental impressions: A randomized controlled trial.
abstract: OBJECTIVE
  This study aimed to evaluate whether the extract of Morinda citrifolia L. mixed with irreversible hydrocolloid powder decreases microbial contamination during impression making without affecting the resulting casts.
  
  
  METHODS
  Twenty volunteers were randomly divided into two groups (n = 10). Group A 30 ml extract of M. citrifolia L diluted in 30 ml of water was mixed to make the impression with irreversible hydrocolloid material. Group B 30 ml deionized water was mixed with irreversible hydrocolloid material to make the impressions following which the surface roughness and dimensional stability of casts were evaluated.
  
  
  RESULTS
  Extract of M. citrifolia L. mixed with irreversible hydrocolloid decreased the percentage of microorganisms when compared with water (P < 0.001) but did not affect the surface quality or dimensional stability of the casts.
  
  
  CONCLUSIONS
  Mixing the extract of M. citrifolia L. with irreversible hydrocolloid powder is an alternative method to prevent contamination without sacrificing impression quality.
authors.affiliation: Department of Maxillofacial Prosthodontics and Oral Implantology, SRM Dental College and Hospital, Chennai, Tamil Nadu, India.
authors.forename: A Shafath
authors.initials: AS
authors.lastname: Ahmed
authors.affiliation: Department of Maxillofacial Prosthodontics and Oral Implantology, SRM Dental College and Hospital, Chennai, Tamil Nadu, India.
authors.forename: P David
authors.initials: PD
authors.lastname: Charles
authors.affiliation: Department of Maxillofacial Prosthodontics and Oral Implantology, SRM Dental College and Hospital, Chennai, Tamil Nadu, India.
authors.forename: R
authors.initials: R
authors.lastname: Cholan
authors.affiliation: Department of Maxillofacial Prosthodontics and Oral Implantology, SRM Dental College and Hospital, Chennai, Tamil Nadu, India.
authors.forename: M
authors.initials: M
authors.lastname: Russia
authors.affiliation: Department of Maxillofacial Prosthodontics and Oral Implantology, SRM Dental College and Hospital, Chennai, Tamil Nadu, India.
authors.forename: R
authors.initials: R
authors.lastname: Surya
authors.affiliation: Department of Maxillofacial Prosthodontics and Oral Implantology, SRM Dental College and Hospital, Chennai, Tamil Nadu, India.
authors.forename: L
authors.initials: L
authors.lastname: Jailance
keywords: Antibacterial efficacy; Morinda citrifolia L; irreversible hydrocolloid