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Influence of Periodontal Treatment During Pregnancy in Adverse Pregnant Outcomes

This study has been completed.
Information provided by:
University of Sao Paulo Identifier:
First received: May 4, 2009
Last updated: NA
Last verified: May 2009
History: No changes posted

The aim of this study is to evaluate the effects of treatment of periodontal disease during the second trimester of gestation in adverse pregnancy outcomes.

Pregnant patients during the 1st and 2nd trimesters at antenatal care in a Public Health Center will be divided into two groups: NIG- 'no intervention' or IG- 'intervention,' according to agreement in receive periodontal treatment during pregnancy. Treatment will be performed by a single periodontist consisting of scaling and root planning (SRP), professional prophylaxis (PROPH) and oral hygiene instruction (OHI). Patients at NIG will receive PROPH and OHI during pregnancy and will be referred for treatment after delivery. Periodontal evaluation will be performed by a single trained examiner, blinded to periodontal treatment, according to probing depth (PD), clinical attachment level (CAL), plaque index (PI) and sulcular bleeding index (SBI) at baseline and 35 gestational weeks-28 days post-partum. Primary adverse pregnancy outcomes to be addressed are: preterm birth (< 37 weeks), low birth weight (< 2.500 Kg), late abortion (14-24 weeks) or abortion (< 14 weeks). The results obtained will be statistically evaluated according to OR, unpaired t test and paired t test.

It is expected that periodontal treatment during the second trimester of gestation will result in decreased rates of adverse pregnancy outcomes.

Condition Intervention
Periodontal Disease Other: Scaling and root planning

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: Single (Investigator)
Primary Purpose: Treatment
Official Title: Influence of Periodontal Treatment in Pregnant Women Attending Antenatal Care at a Public Health Center in Adverse Pregnant Outcomes: a Controlled Clinical Trial

Resource links provided by NLM:

Further study details as provided by University of Sao Paulo:

Primary Outcome Measures:
  • Primary outcome measures recorded are: preterm birth (PTB), defined as delivery < 37 weeks; low birth weight (LBW), defined as < 2.500Kg birth weight; preterm birth and low birth weight [ Time Frame: Within 30 days after delivery ]

Secondary Outcome Measures:
  • Secondary outcome measures are: late abortion (14-24 gestational weeks); and abortion (< 14 gestational weeks) [ Time Frame: Within 30 days after development ]

Enrollment: 33
Study Start Date: August 2001
Study Completion Date: September 2002
Primary Completion Date: August 2002 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Periodontal treatment
Scaling and root planning
Other: Scaling and root planning
Intervention will consist of supra and subgingival scaling and root planning performed by a single trained periodontist using Gracey curettes (Hu-Friedy, Chicago, USA) without local or general anesthesia during the second trimester of gestation, followed by professional prophylaxis and oral hygiene instruction. Treatment will be performed only once during study.
No Intervention: Control

Detailed Description:

All patients entering the study at the 1st and 2nd trimesters will be invited to participate in an oral health program, including oral hygiene instruction, caries diagnosis and treatment, and evaluation and treatment of periodontal conditions during the second trimester. Those who refuse to receive periodontal treatment during pregnancy will constitute the 'no intervention' control group (NIG), while those who agree in receiving dental and periodontal treatment during the second trimester of gestation will constitute the 'intervention' group (IG).

Patients are going to be evaluated by a single calibrated periodontist blinded in relation to periodontal treatment, which will be performed by another periodontist. Treatment consists of scaling and root planning, professional prophylaxis and oral hygiene instruction. Obstetrical data, birth weight and gestation duration will be recorded after examination and recording by the responsible obstetrician and nursery staff.


Ages Eligible for Study:   16 Years to 39 Years   (Child, Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • confirmed singleton gestations
  • pregnancy of 9-24
  • systemically healthy women
  • age range: 16-39 years old

Exclusion Criteria:

  • non confirmed pregnancy
  • age inferior to 16 years or superior to 39 years
  • multiple gestations
  • smoking
  • alcohol or drugs abuse
  • history of congenital heart disease
  • current use of corticosteroids or antibiotics
  • presence of systemic conditions (eg: diabetes, hypertension, or genitor-urinary infections)
  Contacts and Locations
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Please refer to this study by its identifier: NCT00893802

Jardim Redentor I Public Health Center
Bauru, SP, Brazil, 17100-000
Sponsors and Collaborators
University of Sao Paulo
Study Director: Adriana P Sant'Ana, DDS PhD Associate Professor - School of Dentistry at Bauru-USP
Principal Investigator: Marinele R Campos, DDS Graduation student on Periodontics (Master level). School of Dentistry at Bauru - USP
  More Information

Responsible Party: Adriana Campos Passanezi Sant'Ana, Discipline of Periodontics, School of Dentistry at Bauru-USP Identifier: NCT00893802     History of Changes
Other Study ID Numbers: CEP102/2002/FOB
CEP 102/2002
Study First Received: May 4, 2009
Last Updated: May 4, 2009

Keywords provided by University of Sao Paulo:
periodontal disease
periodontal treatment

Additional relevant MeSH terms:
Periodontal Diseases
Gingival Diseases
Mouth Diseases
Stomatognathic Diseases processed this record on September 25, 2017